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Well a little, kinda big, update.
The starter has been clicking every so often. You would go to start and it you sometimes fire right over and other times click a few times then start. I thought relay. So we replaced the starter with another new one and it was doing the same thing. We tried shimming it and we just couldn't get the right combo. So we borrowed a smaller starter from a buddy and while it timed correctly the starter gear was hitting the back of flexplate, but it was completely random. We were stumped. Then my stepdad pried on the torque converter and it shifted forward about a quarter inch. He noticed he could move the entire crank assembly back and forth and I could see the harmonic balancer moving. Shit... So now we get to pull the motor and see why. I am guessing one of the main crank bearings is bad causing the play. We might be looking at a simple replacement or a full on motor rebuild. Great. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
I called headman headers and they are 7 weeks out on a custom header for this motor. I don't want to wait that long so I will call a few other places.
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Originally Posted By TOTHEMAX: I called headman headers and they are 7 weeks out on a custom header for this motor. I don't want to wait that long so I will call a few other places. View Quote https://www.schoenfeldheaders.com/trucks-101.html These guys make good stuff What are you doing for ignition and fuel delivery? |
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Strength Determination Merciless Forever
PA, USA
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At least it's an automatic so you don't have to worry about the Z-bar hitting the headers.
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Originally Posted By Macon1: https://www.schoenfeldheaders.com/trucks-101.html These guys make good stuff What are you doing for ignition and fuel delivery? View Quote I will see what they offer, Thanks. The motor came with a dual plane intake and lightly used holley 750? I'll have to double check. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Originally Posted By TOTHEMAX: I will see what they offer, Thanks. The motor came with a dual plane intake and lightly used holley 750? I'll have to double check. View Quote I called headman and they are 7 weeks out for a set. Sanderson has a set in stock and will ship in under a week. That may be the way to go. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Any issues with these wires?
https://a.co/d/8iT3vwS To answer the question about ignition I have an hei msd distributor. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Doing a full custom rebuild on this, crank, cam, pistons, etc?
Sounds like it so just making sure. Hope the block doesn't have a hidden issue. I got threads mixed up and thought this one was already rebuilt. How can so many members have the same trucks, or same family of trucks, some beauties around the build threads in GD and I lose track. |
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The person who complains most, and is the most critical of others has the most to hide.
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident. |
Haven't read the whole thread, but as a life-long Chevy guy, I love what you're doing, my favorite trucks are the 68-72, and 3/4 ton oh hell yeah. Best of luck to you on this build, she's looking great!
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Smaug:"I laid low the warriors of old and their like is not in the world today". 1 dedicated marksman who held his ground and kept shooting:"Haha bow go twang!"
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Originally Posted By brass: Doing a full custom rebuild on this, crank, cam, pistons, etc? Sounds like it so just making sure. Hope the block doesn't have a hidden issue. I got threads mixed up and thought this one was already rebuilt. How can so many members have the same trucks, or same family of trucks, some beauties around the build threads in GD and I lose track. View Quote There are a few members here who have this body style. I will end up rebuilding the 350. Not sure what I'll do with it though.. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Strength Determination Merciless Forever
PA, USA
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Originally Posted By TOTHEMAX: Any issues with these wires? https://a.co/d/8iT3vwS To answer the question about ignition I have an hei msd distributor. View Quote No, but fuck buying stuff like that from Amazon. Too easy to get fake stuff |
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Originally Posted By TOTHEMAX: There are a few members here who have this body style. I will end up rebuilding the 350. Not sure what I'll do with it though.. View Quote View All Quotes View All Quotes Originally Posted By TOTHEMAX: Originally Posted By brass: Doing a full custom rebuild on this, crank, cam, pistons, etc? Sounds like it so just making sure. Hope the block doesn't have a hidden issue. I got threads mixed up and thought this one was already rebuilt. How can so many members have the same trucks, or same family of trucks, some beauties around the build threads in GD and I lose track. There are a few members here who have this body style. I will end up rebuilding the 350. Not sure what I'll do with it though.. Maybe look at a crate motor? Sometimes that's cheaper than paying for machining heads and checking bores and other tolerances. Then you can pick any performance level you desire based on money and if going EFI or cabrator and options like that. If you don't have your own mill, things get spendy if it overheated or was stressed too much. Just getting it in a jig to check all the tolerances is spendy or a pain if you don't have reference surfaces. |
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The person who complains most, and is the most critical of others has the most to hide.
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident. |
OP, learn from my mistake. A month or two ago, I had my SBC out and doing work to it. I didn't touch the water pump. Got everything together and been driving around. Yesterday I noticed it pouring water. The stupid PoS water pump was pissing out the weep hole. I got to spend the afternoon pulling out the shroud, fan, all the accessory brackets, and replacing that thing in the truck. Autozone does stock all new, not remanufactured ones. I got a heavy duty aluminum one in there now. Put as many new parts on your motor as you can now. There will never be an easier time to do it.
I can also vouch for the LMC aluminum radiator. Its an aluminum core with plastic tanks. It fits perfectly with the factory shroud and all the various lines in our trucks. |
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Originally Posted By brass: Maybe look at a crate motor? Sometimes that's cheaper than paying for machining heads and checking bores and other tolerances. Then you can pick any performance level you desire based on money and if going EFI or cabrator and options like that. If you don't have your own mill, things get spendy if it overheated or was stressed too much. Just getting it in a jig to check all the tolerances is spendy or a pain if you don't have reference surfaces. View Quote View All Quotes View All Quotes Originally Posted By brass: Originally Posted By TOTHEMAX: Originally Posted By brass: Doing a full custom rebuild on this, crank, cam, pistons, etc? Sounds like it so just making sure. Hope the block doesn't have a hidden issue. I got threads mixed up and thought this one was already rebuilt. How can so many members have the same trucks, or same family of trucks, some beauties around the build threads in GD and I lose track. There are a few members here who have this body style. I will end up rebuilding the 350. Not sure what I'll do with it though.. Maybe look at a crate motor? Sometimes that's cheaper than paying for machining heads and checking bores and other tolerances. Then you can pick any performance level you desire based on money and if going EFI or cabrator and options like that. If you don't have your own mill, things get spendy if it overheated or was stressed too much. Just getting it in a jig to check all the tolerances is spendy or a pain if you don't have reference surfaces. Create motor is already purchased. Look up a few posts. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Originally Posted By Into_the_Void: No, but fuck buying stuff like that from Amazon. Too easy to get fake stuff View Quote View All Quotes View All Quotes Originally Posted By Into_the_Void: Originally Posted By TOTHEMAX: Any issues with these wires? https://a.co/d/8iT3vwS To answer the question about ignition I have an hei msd distributor. No, but fuck buying stuff like that from Amazon. Too easy to get fake stuff I found some on blueprints site |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Originally Posted By giantpune: OP, learn from my mistake. A month or two ago, I had my SBC out and doing work to it. I didn't touch the water pump. Got everything together and been driving around. Yesterday I noticed it pouring water. The stupid PoS water pump was pissing out the weep hole. I got to spend the afternoon pulling out the shroud, fan, all the accessory brackets, and replacing that thing in the truck. Autozone does stock all new, not remanufactured ones. I got a heavy duty aluminum one in there now. Put as many new parts on your motor as you can now. There will never be an easier time to do it. I can also vouch for the LMC aluminum radiator. Its an aluminum core with plastic tanks. It fits perfectly with the factory shroud and all the various lines in our trucks. View Quote I'll be getting a new water pump to. I really want to ditch the factory fan and go with electric fans. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Originally Posted By TOTHEMAX: Create motor is already purchased. Look up a few posts. View Quote View All Quotes View All Quotes Originally Posted By TOTHEMAX: Originally Posted By brass: Originally Posted By TOTHEMAX: Originally Posted By brass: Doing a full custom rebuild on this, crank, cam, pistons, etc? Sounds like it so just making sure. Hope the block doesn't have a hidden issue. I got threads mixed up and thought this one was already rebuilt. How can so many members have the same trucks, or same family of trucks, some beauties around the build threads in GD and I lose track. There are a few members here who have this body style. I will end up rebuilding the 350. Not sure what I'll do with it though.. Maybe look at a crate motor? Sometimes that's cheaper than paying for machining heads and checking bores and other tolerances. Then you can pick any performance level you desire based on money and if going EFI or cabrator and options like that. If you don't have your own mill, things get spendy if it overheated or was stressed too much. Just getting it in a jig to check all the tolerances is spendy or a pain if you don't have reference surfaces. Create motor is already purchased. Look up a few posts. I'm kind of blind at times it would seem. --ETA: Images didn't load for some reason, working now. |
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The person who complains most, and is the most critical of others has the most to hide.
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident. |
Originally Posted By TOTHEMAX: I'll be getting a new water pump to. I really want to ditch the factory fan and go with electric fans. View Quote I've got some old cars ive switched over to electric fans. In my experience, its not a great setup unless you are running some sort of ECU that you can let control the fans. Otherwise you end up with some janky setup of relays, switches, and temp probes. Then where do you put the temp probes? If you put them on water coming into the radiator, the fans will never shut off because there's always hot water coming into the radiator. If you put the probe near the water heading back to the water pump, then by the time its probed, that water is already heading back to the engine, so not much point using it to control the fans. I ended up settling for some adjustable thermostat with the probe in the center of the radiator with manual override switches. To me, the old style of mechanical fan with a clutch and thermostat is simpler. And it works better. |
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Strength Determination Merciless Forever
PA, USA
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I run an electric fan. I have it on a manual switch as my engine runs cool all the time. Seriously, my engine gets to 180 and just parks itself there. I think I've turned on my fan once. I'm glad too because the fan is so overkill - it sounds like a fucking jet engine and drops my RPM's when I throw the switch for it lol.
Lots of timing, high flow pump, and a big ass aluminum radiator does the job |
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We have a 4-core radiator out of one of these trucks that has been cleaned, tanked, and cored. I wonder if that will work.
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Originally Posted By TOTHEMAX: We have a 4-core radiator out of one of these trucks that has been cleaned, tanked, and cored. I wonder if that will work. View Quote Is it a stock copper one? I would definitely try it. Most likely a 4 core one will be able to keep up with it unless you're standing on your rev limiter for 5 minutes, just smoking the tires but not really getting air movement through the radiator. Its free to give it a shot and see how it does. |
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Originally Posted By giantpune: Is it a stock copper one? I would definitely try it. Most likely a 4 core one will be able to keep up with it unless you're standing on your rev limiter for 5 minutes, just smoking the tires but not really getting air movement through the radiator. Its free to give it a shot and see how it does. View Quote View All Quotes View All Quotes Originally Posted By giantpune: Originally Posted By TOTHEMAX: We have a 4-core radiator out of one of these trucks that has been cleaned, tanked, and cored. I wonder if that will work. Is it a stock copper one? I would definitely try it. Most likely a 4 core one will be able to keep up with it unless you're standing on your rev limiter for 5 minutes, just smoking the tires but not really getting air movement through the radiator. Its free to give it a shot and see how it does. It is a stock one. I don't know what metal it is made out of. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
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Originally Posted By giantpune: Does it taste like a penny covered in antifreeze? View Quote View All Quotes View All Quotes Originally Posted By giantpune: Originally Posted By TOTHEMAX: It is a stock one. I don't know what metal it is made out of. Does it taste like a penny covered in antifreeze? Ha. Can't say I have ever tried to taste it. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
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Originally Posted By Macon1: Did you have a cooling issue before? View Quote View All Quotes View All Quotes Originally Posted By Macon1: Originally Posted By TOTHEMAX: It is a stock one. I don't know what metal it is made out of. Did you have a cooling issue before? Nope. I think the radiator that is in it is a 2 core. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
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Originally Posted By TOTHEMAX: Nope. I think the radiator that is in it is a 2 core. View Quote Id run it, number of cores isnt as important as material, core size , core efficiency. Also, Id run electric fans. I run them on everything, just dont go cheap spal are great. You can get a temp switch to from be cool that work well too. |
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Originally Posted By giantpune: His new motor is 2.5x as much HP as before. The old radiator can probably keep up just cruising and idling, but not while romping. View Quote If he's towing or loading the motor down constantly Id agree, but if the cooling system can keep the motor cool idling around in traffic, itll be fine getting on it every once in a while. |
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Originally Posted By Macon1: If he's towing or loading the motor down constantly Id agree, but if the cooling system can keep the motor cool idling around in traffic, itll be fine getting on it every once in a while. View Quote View All Quotes View All Quotes Originally Posted By Macon1: Originally Posted By giantpune: His new motor is 2.5x as much HP as before. The old radiator can probably keep up just cruising and idling, but not while romping. If he's towing or loading the motor down constantly Id agree, but if the cooling system can keep the motor cool idling around in traffic, itll be fine getting on it every once in a while. That is what I will be doing. Idling, driving at city speeds and romping on it once in a while. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Strength Determination Merciless Forever
PA, USA
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Do you have some sort of LSD in the rear? If not, you're going to want one
I threw an auburn in mine. It's more like a locker |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
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If you haven't done it already, check the status of your front shocks. I just did the ones on my 82. The upper mount for the front shocks is inside the frame. It was a major pain in the taint with the long tube headers, starter, and transmission lines. Shocks are like $45 each. May be worth doing it now while its easy to get to them all.
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Originally Posted By giantpune: If you haven't done it already, check the status of your front shocks. I just did the ones on my 82. The upper mount for the front shocks is inside the frame. It was a major pain in the taint with the long tube headers, starter, and transmission lines. Shocks are like $45 each. May be worth doing it now while its easy to get to them all. View Quote Good thought. Mine are all new. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
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Originally Posted By Macon1: Eaton Tru Trac, its a helical-gear style diff, not a clutch diff works great and never wears out. If I dont run a straight locker, I put a truetrac in my diffs. View Quote View All Quotes View All Quotes Originally Posted By Macon1: Originally Posted By TOTHEMAX: No, its something we need to look at. Eaton Tru Trac, its a helical-gear style diff, not a clutch diff works great and never wears out. If I dont run a straight locker, I put a truetrac in my diffs. Thanks I will look into that. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
I also need a torque converter. I was thinking around a 2500 stall? Any suggestions on a moderately priced option?
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Originally Posted By TOTHEMAX: I also need a torque converter. I was thinking around a 2500 stall? Any suggestions on a moderately priced option? View Quote Given that it is going to be directly bolted to your 500HP monster, and it is not a trivial component to replace, I would not try to save too many pennies on a torque converter. Pick something from a reputable brand. I didn't catch what transmission nor how many teeth your flexplate is. TCI for a turbo350/400 in that stall speed is < $500. https://www.summitracing.com/parts/tci-240900 |
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Originally Posted By giantpune: Given that it is going to be directly bolted to your 500HP monster, and it is not a trivial component to replace, I would not try to save too many pennies on a torque converter. Pick something from a reputable brand. I didn't catch what transmission nor how many teeth your flexplate is. TCI for a turbo350/400 in that stall speed is < $500. https://www.summitracing.com/parts/tci-240900 View Quote View All Quotes View All Quotes Originally Posted By giantpune: Originally Posted By TOTHEMAX: I also need a torque converter. I was thinking around a 2500 stall? Any suggestions on a moderately priced option? Given that it is going to be directly bolted to your 500HP monster, and it is not a trivial component to replace, I would not try to save too many pennies on a torque converter. Pick something from a reputable brand. I didn't catch what transmission nor how many teeth your flexplate is. TCI for a turbo350/400 in that stall speed is < $500. https://www.summitracing.com/parts/tci-240900 I'll have to count the teeth tomorrow. I don't mind spending a little $ if it's worth it. I honestly don't know what the difference is between a cheaper one and a more expensive one. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Originally Posted By TOTHEMAX: I'll have to count the teeth tomorrow. I don't mind spending a little $ if it's worth it. I honestly don't know what the difference is between a cheaper one and a more expensive one. View Quote Selection and what all the specs are (like "flash") is something that isn't explained even in the articles about torque converters. When there is a lot more horsepower than the design, the internal fins could rip off and shred the thing is one aspect. The other one is that the stall RPM should match the maximum torque RPM of your engine. I don't quite understand that as you don't know what it is until you run it on a dyno, which goes through the converter... I guess the specification for that you do have since you got the crate engine so it should be easier to pick. If going on long trips, "lock up" is something to remove any fluid coupling losses from 3% down to 0% when running at a steady speed/load. Places like Summit racing have customer support who can help you pick what you need without going for all out overkill. Unless you're planning on putting forced induction or other major horsepower boost to it, a mid range one with stall speed near max torque RPM should do fine. |
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The person who complains most, and is the most critical of others has the most to hide.
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident. |
Originally Posted By TOTHEMAX: I'll have to count the teeth tomorrow. I don't mind spending a little $ if it's worth it. I honestly don't know what the difference is between a cheaper one and a more expensive one. View Quote Does this mean you intend to reuse your old stock flexplate? I would probably say go with an upgraded one. The stock one wasn't made to last behind 500 horsies. The stock ones eventually break while being attached to V6 stock motors. And no matter what you decide, the flexplate bolts are not meant to be reused. An SFI rated flexplate for a SBC can be had for around $75. Forged flexplates like $130. And a new set of ARP is bolts < $20. |
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Originally Posted By giantpune: Does this mean you intend to reuse your old stock flexplate? I would probably say go with an upgraded one. The stock one wasn't made to last behind 500 horsies. The stock ones eventually break while being attached to V6 stock motors. And no matter what you decide, the flexplate bolts are not meant to be reused. An SFI rated flexplate for a SBC can be had for around $75. Forged flexplates like $130. And a new set of ARP is bolts < $20. View Quote View All Quotes View All Quotes Originally Posted By giantpune: Originally Posted By TOTHEMAX: I'll have to count the teeth tomorrow. I don't mind spending a little $ if it's worth it. I honestly don't know what the difference is between a cheaper one and a more expensive one. Does this mean you intend to reuse your old stock flexplate? I would probably say go with an upgraded one. The stock one wasn't made to last behind 500 horsies. The stock ones eventually break while being attached to V6 stock motors. And no matter what you decide, the flexplate bolts are not meant to be reused. An SFI rated flexplate for a SBC can be had for around $75. Forged flexplates like $130. And a new set of ARP is bolts < $20. Copy. We just replaced it when we put the th400 in last winter but I don't remember what brand flex plate we went with. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
Headers will be here tomorrow.
I am about to punch a 1k$ parts order from jegs. |
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3-7-77
Proud Member of the Leather Head Mafia “In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton |
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