building a 5.0 305
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building a 5.0 305
i'm hoping to be building a 305 small block some time soon. so shoot me some ideas on mods and **** that i should do to it. as far as heads are concerned i'm hoping to be running a set off of a 327 vette so that's good for now. hoping to go fuel injected too. so shoot some ideas my way and let me know what you guys would do.
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327 heads are waaaaaaay outdated, plus they're set up to run a 4" bore, not the 3.8" bore of the 305. You'd have to mill them down a bit to make the chambers even make good compression, but then you'd be left with a crappy shaped combustion chamber.
What you should be running on a 305, if you want to stay with gen 1 heads, are the best 305 heads ever made, the 416 H.O. castings. You can find them on '82-'84 305 H.O. carburated Z28 Camaros/Trans Ams, and '85-'86 305 TPI Camaros and TA's. You do NOT want the TBI heads as they are beyond junk. I made almost 300 whp on my stock short block 305 in my TA, so it can be done. Heck, I had 250 whp without headers!!!
If you want to make the move to Vortec heads, get some new ones from Scoggin Dicky that are already modified for higher lift and better springs. You'll spend more at the machine shop to make stock ones worth while in a high performace application.
If you're really into spending to much money, buy Keith Black pistons and a stroker crank to make a 334. If a stroker isn't up you alley, get a different set of KB pistons and a set of 6" rods and make a long rod 305.
What you should be running on a 305, if you want to stay with gen 1 heads, are the best 305 heads ever made, the 416 H.O. castings. You can find them on '82-'84 305 H.O. carburated Z28 Camaros/Trans Ams, and '85-'86 305 TPI Camaros and TA's. You do NOT want the TBI heads as they are beyond junk. I made almost 300 whp on my stock short block 305 in my TA, so it can be done. Heck, I had 250 whp without headers!!!
If you want to make the move to Vortec heads, get some new ones from Scoggin Dicky that are already modified for higher lift and better springs. You'll spend more at the machine shop to make stock ones worth while in a high performace application.
If you're really into spending to much money, buy Keith Black pistons and a stroker crank to make a 334. If a stroker isn't up you alley, get a different set of KB pistons and a set of 6" rods and make a long rod 305.
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well to answer all tha questions on why i chose a 305 is because a good buddy of mine has one that he found and i'll be able to get it for much of nothing so its just a cheap project to better my mechanic skills before i go to college. i plan on putting the motor in something like such as a s10 or something along those lines so it should do faily well......atleast i hope it will.................any more suggestions on what i should do as far as heads, cam, and good stuff like that. btw i was wondering if i could get it prepped for a roller can and use either the LT1 or LT4 cam in the block?
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Originally Posted by SBTork
I do not know about the cam question, but I do see why you want to do a 305. It should be a good way to cut your teeth on the mechanics of engines. Good luck.
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Originally Posted by J$Money
well to answer all tha questions on why i chose a 305 is because a good buddy of mine has one that he found and i'll be able to get it for much of nothing so its just a cheap project to better my mechanic skills before i go to college. i plan on putting the motor in something like such as a s10 or something along those lines so it should do faily well......atleast i hope it will.................any more suggestions on what i should do as far as heads, cam, and good stuff like that. btw i was wondering if i could get it prepped for a roller can and use either the LT1 or LT4 cam in the block?
Personally, if it's not a roller engine already, I'd just spend 80-90 bucks and get a Summit Racing brand cam. I like the SUM-1105 myself. I had the SUM-1104 cam in my 305 TA and made it work well with a little programming of the ECU. I would have went with the 1105 if I would have had gears and a converter...