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  #16 (permalink)  
Old 05-10-2011, 01:11 PM
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it was posted ealier on this thread about the tires, my car isn't tubed but i do have completly updated suspension and the rearend sits about 1" higher with the front end about 1" lower. but i am able to run p295/60R15's (m/t drag radials) and a 28x10 slick without any rubbing issues

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Old 06-11-2011, 09:43 AM
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i guess my question in conjunction with the original question is, Do all big blocks, including the ones you can find "cheap" in the classifieds that came in 80's trucks/u-hauls and the like have very good blocks? i would define "good" as being able to take 800hp. And do they come with forged rotating assemblies----crank, rods, pistons?

If not, can we get a guide?
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Old 06-13-2011, 08:14 AM
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Late 70's and 80's big blocks were 2 bolt mains and cast cranks. Could they be built to make 800 hp? Sure. That's what NOS is for. However, this combo is meant to make power and last. Reliability is more important to me than HP anyday. Unless your a class racer for NHRA or IHRA there is no need to build the motor for kill.
Do you want to sit around and brag about the three times you ran 9.20's before the engine failed or do you want to run mid 11's and drive it for the next 5 to 6 years?
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  #19 (permalink)  
Old 06-13-2011, 01:54 PM
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Quote:
Originally Posted by lt1silverhawk
I might possibly install a roll bar.
http://www.crankshaftcoalition.com/w...legal_Roll_Bar
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  #20 (permalink)  
Old 06-13-2011, 07:45 PM
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Quote:
Originally Posted by my87Z
it was posted ealier on this thread about the tires, my car isn't tubed but i do have completly updated suspension and the rearend sits about 1" higher with the front end about 1" lower. but i am able to run p295/60R15's (m/t drag radials) and a 28x10 slick without any rubbing issues
Hmmm. Maybe mine isn't tubbed then. I'm gonna check and report back. Glad you mentioned it as someone else can use that info.




Quote:
Originally Posted by techinspector1
Thank you Sir!




Quote:
Originally Posted by against all odds
i guess my question in conjunction with the original question is, Do all big blocks, including the ones you can find "cheap" in the classifieds that came in 80's trucks/u-hauls and the like have very good blocks? i would define "good" as being able to take 800hp. And do they come with forged rotating assemblies----crank, rods, pistons?

If not, can we get a guide?

Quote:
Originally Posted by cal1320
Late 70's and 80's big blocks were 2 bolt mains and cast cranks. Could they be built to make 800 hp? Sure. That's what NOS is for. However, this combo is meant to make power and last. Reliability is more important to me than HP anyday. Unless your a class racer for NHRA or IHRA there is no need to build the motor for kill.
Do you want to sit around and brag about the three times you ran 9.20's before the engine failed or do you want to run mid 11's and drive it for the next 5 to 6 years?
Interesting info, thanks!
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Old 06-14-2011, 06:38 PM
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Quote:
Originally Posted by cal1320
Late 70's and 80's big blocks were 2 bolt mains and cast cranks. Could they be built to make 800 hp? Sure. That's what NOS is for. However, this combo is meant to make power and last. Reliability is more important to me than HP anyday. Unless your a class racer for NHRA or IHRA there is no need to build the motor for kill.
Do you want to sit around and brag about the three times you ran 9.20's before the engine failed or do you want to run mid 11's and drive it for the next 5 to 6 years?
i agree that reliability is way more important than big numbers. i guess i should have made it clearer; Are the blocks themselves able to withstand 800hp? Just the blocks not any of the rotating/reciprocating assembly. The blocks that you can find in 3/4, 1 ton trucks, medium dutys/school buses etc.?
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Old 06-23-2011, 10:30 PM
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Quote:
Originally Posted by against all odds
i agree that reliability is way more important than big numbers. i guess i should have made it clearer; Are the blocks themselves able to withstand 800hp? Just the blocks not any of the rotating/reciprocating assembly. The blocks that you can find in 3/4, 1 ton trucks, medium dutys/school buses etc.?
Bumping this thread so hopefully someone can answer against all odds' question quoted above...
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  #23 (permalink)  
Old 06-24-2011, 12:02 AM
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Quote:
Originally Posted by against all odds
Are the blocks themselves able to withstand 800hp?
I'm not a professional engine builder, but in my opinion, around 800 would be the high limit for a production block for me. Over that and I think I'd be lookin' for an aftermarket block. Same with 550 on a small block.
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