stroke and bore
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Post Fiend
Joined: Jan 2004
Posts: 5,377
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From: Elkhart IN
stroke and bore
whats the biggest youve ever heard of a a 460 being stoked and bored to? just kinda curious, cause i heard some crazy numbers, just want to see if there relistic.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
the 600+ cid engines almost always require the use of sleeves, yes you can run 4.75 stroke crank personally I don't like it do to rod ratios, and where the pin has to be in the piston. Also 4.75" stroke cranks are always expensive since from what I have seen the only way to get them at this time is a billet crank which runs pretty close to $3000 and atleast $2500 so why would you put a 2500+ crank into a $50 junk yard block?
Realistically in a stock block with sonic testing, and without using sleeves 557 si probably you max although if you sonic test, and sleeve the one or two thin cyl a 572 (4.5x4.5) is pretty doable.
Using an eliminator premier block with a max bore of 4.7, and a 4.5 crank your at 624, and go with the 4.75 crank your at 659cid.
Kaase runs the alum tall deck blocks to build his 815cid prostock engines but not only are they tall deck but they are 5" bore centerlines instead of 4.9"
Realistically in a stock block with sonic testing, and without using sleeves 557 si probably you max although if you sonic test, and sleeve the one or two thin cyl a 572 (4.5x4.5) is pretty doable.
Using an eliminator premier block with a max bore of 4.7, and a 4.5 crank your at 624, and go with the 4.75 crank your at 659cid.
Kaase runs the alum tall deck blocks to build his 815cid prostock engines but not only are they tall deck but they are 5" bore centerlines instead of 4.9"
Last edited by monsterbaby; Nov 10, 2005 at 10:58 AM.
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