LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What year block?

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Old Dec 7, 2009 | 02:02 PM
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Default What year block?

what year corvette block do i need to have in order to run in my 96 camaro? im looking for the 4bolt option. OR should i get the splayed main caps?(Milodon?) im building a 383 or 396 will be using the stock heads with porting and a cam will be made to the head flow numbers. i do plan on running nitrous not sure how much. and will do a set of aftermarket heads and bigger cam next winter(maybe) What is the better option here? is it worth it?
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Old Dec 7, 2009 | 02:33 PM
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Originally Posted by thomas89xj
what year corvette block do i need to have in order to run in my 96 camaro? im looking for the 4bolt option. OR should i get the splayed main caps?(Milodon?) im building a 383 or 396 will be using the stock heads with porting and a cam will be made to the head flow numbers. i do plan on running nitrous not sure how much. and will do a set of aftermarket heads and bigger cam next winter(maybe) What is the better option here? is it worth it?
All OEM Corvette LT1 blocks (1992 to 1996) were 4-bolt mains. In addition, all replacement GM crate engines and short-blocks were also 4-bolt. Other than that, the block is the same.

Don't underestimate the strength of the OEM 2-bolt main, however.
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Old Dec 7, 2009 | 02:38 PM
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As he said but the 2 bolt will with stand a tremendous amounts of power thrown at it as well.
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Old Dec 7, 2009 | 03:13 PM
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i have herd of a LOT of power being put through the 2 bolt blocks, i have a block from a vett i can get for a good cost, just not sure it is worth the extra money. we are looking for 450-500rwhp, does that sound about right with stock heads/intake, ported with cam ground to match? I have a tpis tb, bigger mass, 40#inj,compleat fuel system,Lt's,delteq cc, car will be tuned on dyno.
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Old Dec 7, 2009 | 03:19 PM
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Originally Posted by thomas89xj
i have herd of a LOT of power being put through the 2 bolt blocks, i have a block from a vett i can get for a good cost, just not sure it is worth the extra money. we are looking for 450-500rwhp, does that sound about right with stock heads/intake, ported with cam ground to match? I have a tpis tb, bigger mass, 40#inj,compleat fuel system,Lt's,delteq cc, car will be tuned on dyno.
The approach for 450whp versus 500whp are two totally different things. What transmission are you planning on running? Any nitrous?

You can get 450whp on ported stock castings, but 500whp is going to take quite a bit more.
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Old Dec 7, 2009 | 04:54 PM
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i have a built t56 with a spec3+ clutch, nitrous will happen but later. for now it will stay stock head/intake, the guy doing my work has built some very solid motors and has a good name for some VERY good port work. it just depends how much money i give him to how much time he spends on them.
i have looked into the dart heads but im thinking they will come into play on round two.
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Old Dec 7, 2009 | 06:31 PM
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450rwhp will be very hard to hit on stock casted heads with no port work. I would save the coin till you can afford to pick up some A/I 200's or LE3's Or even 195s/LE2's.

Stock castings ported can make great numbers for what they are..Stock not so much.

On original topic though, the stock 2 bolt has made tremendous power time and time again. If you're that worried about it, get some splayed 4 bolt caps and have the shop machine em.
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Old Dec 7, 2009 | 06:52 PM
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Have you considered buying the aftermarket heads this time around and then having them ported on round two. Just so you wouldn't be putting money into heads you won't be keeping. Just a thought.
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Old Dec 7, 2009 | 07:21 PM
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Originally Posted by Sk8phreak88
450rwhp will be IMPOSSIBLE on stock casted heads with no port work. I would save the coin till you can afford to pick up some A/I 200's or LE3's Or even 195s/LE2's.

Stock castings ported can make great numbers for what they are..Stock not so much.

On original topic though, the stock 2 bolt has made tremendous power time and time again. If you're that worried about it, get some splayed 4 bolt caps and have the shop machine em.
Fixed...
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Old Dec 7, 2009 | 07:40 PM
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the stock heads WILL be ported im just not sure how much work will be put into them. we looked at LE, and AI and he said he can and has matched thoes flow numbers. my reason to use the stock heads WITH portwork for now is to save some of the money for the rearend. later i plan on getting a set of heads AND have port work done as well. the stock head with porting can and has made 500whp N/A.
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Old Dec 8, 2009 | 01:26 AM
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Oh, well if they are getting touched up then you're goal shouldn't be hard if the porter really can match Lloyd or A/I's numbers!

Post up the results when it's done.
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Old Dec 8, 2009 | 10:56 AM
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why build it now just to tear it down and build again? thats just a waste. build what you want/can afford now and stick with it.
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Old Dec 8, 2009 | 01:13 PM
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my plan is to build what i can now that is why i will use the stock ported head for now. The extra money i would have to put out for the aftermarket heads plus the protwork on them would greatly reduse the amount of money i have set aside for the rearend. yes doing the heads and everything now would be ideal IF i had the money to do everything at once. But like many here my funds are NOT endless and i do have a budget. i would love to build my car with all the best parts right now but that is just not going to happen. i dont see the point in putting every penny i have into the motor and go out with a stock rear with stock gears. That would not make sense to me.
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