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- Peer Mediator
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The ORIGINAL 302's were carbeuretted and had flat tappet solid lifters. They required valve lash adjustments every few months and carb retuning every season.
As far as the bearing life goes, as long as you have enough oil pressure, you won't have bearing issues. IIRC, a Chevy requires 15 psi to idle and 10 psi per thousand RPM. 80 psi of oil pressure will get you to 7500 RPM.
Ring & cylinder wear is related to average piston speed, which is directly related to stroke. At any given RPM, a 302 has 80% of the piston speed of a 383, which means that at any given RPM, the 302 has a lot less wear, and for the same wear/piston speed, the 302 turns 25% more RPM.
If you build a 302 with extremely long rods (6.250 like I mentioned above), you'll end up with a phenomenal rod/stroke ratio that will dramatically reduce cylinder side loading and give LESS cylinder wear than longer stroke engines like the 383.
As far as the bearing life goes, as long as you have enough oil pressure, you won't have bearing issues. IIRC, a Chevy requires 15 psi to idle and 10 psi per thousand RPM. 80 psi of oil pressure will get you to 7500 RPM.
Ring & cylinder wear is related to average piston speed, which is directly related to stroke. At any given RPM, a 302 has 80% of the piston speed of a 383, which means that at any given RPM, the 302 has a lot less wear, and for the same wear/piston speed, the 302 turns 25% more RPM.
If you build a 302 with extremely long rods (6.250 like I mentioned above), you'll end up with a phenomenal rod/stroke ratio that will dramatically reduce cylinder side loading and give LESS cylinder wear than longer stroke engines like the 383.
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- Peer Mediator
- Posts: 15750
- Joined: Wed Nov 24, 2004 11:13 pm
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Ok, so some asshat was trying to convince me it was a better idea to build up the 350 for the last 4-5 days, even AFTER I explained I needed a powerband that was torquey AFTER the transmission is safely out of danger.
I'm still looking at a fair amount of cash to drop on the 302 build though, plus tranny adaptor plate, plus mounting the engine... I think I'd better buy a running V-6 GT and just do this as a slow process...
I'm still looking at a fair amount of cash to drop on the 302 build though, plus tranny adaptor plate, plus mounting the engine... I think I'd better buy a running V-6 GT and just do this as a slow process...
Metallic Silver 1986 SE


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- Peer Mediator
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Yea, I'll probably just have to drive it stock for a while. I'm looking to end the build at around 400hp maybe?
So I'm definitely looking at a good strong bottom end (would that crank and rod donated from the Caprice actually hold 400 horse?), some kind of good aluminum heads, a high RPM ready valvetrain, a suitable camshaft, a good manifold/spacer/carb combo (at lest one that'll fit under the lid anyway), and a really nice free flowing header to exhaust setup custom for the Fiero...
I'm looking at close to $4,500 there I'd imagine...
So I'm definitely looking at a good strong bottom end (would that crank and rod donated from the Caprice actually hold 400 horse?), some kind of good aluminum heads, a high RPM ready valvetrain, a suitable camshaft, a good manifold/spacer/carb combo (at lest one that'll fit under the lid anyway), and a really nice free flowing header to exhaust setup custom for the Fiero...
I'm looking at close to $4,500 there I'd imagine...
Metallic Silver 1986 SE


- crzyone
- JDM Power FTW
- Posts: 4654
- Joined: Wed Nov 17, 2004 12:40 am
- Location: Whitecourt, Alberta, Canada
Found the perfect car for you.
http://www.fiero.com/forum/Forum4/HTML/033598.html
You basically build a 302 and drop it in. Engine swap is pretty much done. Its a pretty good price for the car, nice and clean looking.
http://www.fiero.com/forum/Forum4/HTML/033598.html
You basically build a 302 and drop it in. Engine swap is pretty much done. Its a pretty good price for the car, nice and clean looking.
- Shaun41178(2)
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- Location: Ben Phelps is an alleged scammer
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- cant get enough of this site!
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There's something going on with that car. He had something wrong with the motor trans/flywheel/suspension being really out of whack. I think there's a thread where he stripped the threads on the motor/trans adapter. I'll post a link if I can find it.crzyone wrote:Found the perfect car for you.
http://www.fiero.com/forum/Forum4/HTML/033598.html
You basically build a 302 and drop it in. Engine swap is pretty much done. Its a pretty good price for the car, nice and clean looking.
edit: Here it is. Sounds to me like it's a just the .610 cam and a solid mounted V8. Anyhow, he mentions aluminum shavings in the bellhousing from something.
http://www.fiero.com/forum/Forum2/HTML/074555.html
Last edited by MNFatz on Tue Aug 29, 2006 9:46 pm, edited 2 times in total.
- crzyone
- JDM Power FTW
- Posts: 4654
- Joined: Wed Nov 17, 2004 12:40 am
- Location: Whitecourt, Alberta, Canada
I'd personally rather have an 85-87 fiero, much easier and cheaper for parts.
The handling difference isn't significant enough either, plus there are aftermarket suspension pieces for the earlier cars.
I flew to Seattle to pick up my car and drive it back, but since that one is not drivable, you can have it shipped for $1000 or less.
If its not your style, thats fine. Buy a nice condition fiero and go from there. I just thought this would be easier. I didn't realize he was having problems with his swap.
The handling difference isn't significant enough either, plus there are aftermarket suspension pieces for the earlier cars.
I flew to Seattle to pick up my car and drive it back, but since that one is not drivable, you can have it shipped for $1000 or less.
If its not your style, thats fine. Buy a nice condition fiero and go from there. I just thought this would be easier. I didn't realize he was having problems with his swap.
Eh, I'm just betting it would be over a grand to have it trucked, and as clean as the car is, I'm biased towards buying a fastback GT instead of a notchback (ironically I liked notchbacks first by a longshot, Fiero fans are funny folk...).
Plus, I'm going to need a running V-6 to begin with, the swap will likely take me some time, I think I'm going to buy the car in time for me to use my Kawasaki for commuting etc and have the swap complete by the time I actually need a car again, but December driving in a Fiero doesn't sound appealing at all...
Plus, I'm going to need a running V-6 to begin with, the swap will likely take me some time, I think I'm going to buy the car in time for me to use my Kawasaki for commuting etc and have the swap complete by the time I actually need a car again, but December driving in a Fiero doesn't sound appealing at all...
Metallic Silver 1986 SE


- Shaun41178(2)
- Posts: 8737
- Joined: Fri Nov 19, 2004 7:12 pm
- Location: Ben Phelps is an alleged scammer
$4k for a rolling chassis? Good lord man is it made out of gold Pixie dust?
He is obviously selling because there is an issue he doesn't want to have to fix, or thinks it can't be without a lot of time and work. Tranny is probably on the way out.
He is obviously selling because there is an issue he doesn't want to have to fix, or thinks it can't be without a lot of time and work. Tranny is probably on the way out.
Last edited by Shaun41178(2) on Tue Aug 29, 2006 10:02 pm, edited 1 time in total.
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- Peer Mediator
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