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ok guys looking at a sb2 steel block with sb2 alum heads with 3.875 stoke would that be enough to run supers and what kid of HP can it put out. it would be around 430 cu.going mainly going to run steel head but looking for a engine to run some big shows close to the house and can get this one reasonable.
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Steel block will make more power than aluminum block.With the right cam,rockers,intake and carburetor you will be somewhere around 875hp depending on dyno. -
how big can that block go right now it is at 4.180Originally posted by perfconn View Post
if that is safe looks like i will buy it.Comment
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If its a bowtie or Little M Block that have not been lightened you are will not get down to 2300 pounds and get the correct percentages.Comment
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what im told is it is a sb2 block that uses special sb2 lifters that are pined in the bore.Originally posted by SLM98 View PostComment
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might could find some info here... http://www.ls1.com/ or http://www.ls1lt1.com/forum/
heres a few on here running sb2 stuff with some wisdom... http://www.4m.net/showthread.php?278...n-a-super-latewhite trash motorsportsComment
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We run a 4.165 x 3.875 SB2.2 combo. 820 hp on a conservative dyno...Have zero problems with being out horsepowered out here on the West Coast...Comment
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but will it go to 4.180 don'y wont to buy it if it not going to lastOriginally posted by sj valley dave View PostComment
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thats close to max the block is a gm sb-2 block like that used by nascar teams. a local racers on alky had dyno sheets with 900+ hp with his 430 but he couldn't get the car to handle so he went back to his 18 degree 390 cuin.Originally posted by twisterf5 View Post
I have a good friend that has 5 or 6 sb-2's for sale rcr,hms,clements? on spelling. you can find him on ebay A-1 performance whare house.Comment
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If it is a 1184 casting then 4.180 is very safe.If it is a 1184A block then 4.200 is safe.Comment
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