Help please ?????????

is there anyway to make a 632 without spending a big difference in money vs 598. i have heard the crank in a 598 is 4.5 stroke but a 632 you would have to step up to like sonny bryant which cost alot more than forged scat 4.5 crank so can you get a crank for 632 around the same price or is that the only way.

bigjohn2007 wrote:is there anyway to make a 632 without spending a big difference in money vs 598. i have heard the crank in a 598 is 4.5 stroke but a 632 you would have to step up to like sonny bryant which cost alot more than forged scat 4.5 crank so can you get a crank for 632 around the same price or is that the only way.

Yeah, the 598 is such a tiny little thing......LOL!!

Adney should be able to get you lined up. http://www.performancecrankshaft.com/

Bill

bigjohn2007 wrote:is there anyway to make a 632 without spending a big difference in money vs 598. i have heard the crank in a 598 is 4.5 stroke but a 632 you would have to step up to like sonny bryant which cost alot more than forged scat 4.5 crank so can you get a crank for 632 around the same price or is that the only way.

To build a 632", requires a 4.600" bore and a 4.750" stroke. To my knowledge, no one makes a 4.750" forged crank. So, to answer your question, you would have to go billet. $$$, but the only way to do it if you want the cubic inches. Odds are the 598" will do nearly as well as the 632", given a decent cylinder head. The choice is yours...

if you wish to use a 4.5 crank you can use a eliminator Block bored to 4.7 and have a 625cubes. but otherthan that you can spend money and geta C&C block and crank..... Cubes are not Cheap if you want it open your pocket book.....


Randy

Yep , the 4.750 cranks are going to be billet = big $s . Seems the thinking is that 600" is small these days

thanks guys for the help

if you think the extra cubes are needed, there is always a way. get a Scat 4.5 crank and offset grind it for .200 stoke- custom rods w/2.100 SBC bearings. then make up the difference with the bore . still cost extra $$$$$$$$$$

DanH wrote:if you think the extra cubes are needed, there is always a way. get a Scat 4.5 crank and offset grind it for .200 stoke- custom rods w/2.100 SBC bearings. then make up the difference with the bore . still cost extra $$$$$$$$$$

Carl Hanson was playing around with this idea a while back and ran it by me. Only difference was using a 2.00 journal on a standard forging. IMHO, this leaves very little journal overlap and would be a very weak crank. The Sonny crank is spendy, but well worth the money. Nothing cheap about any motor, but the bigger they get the more they cost.

632 is a good combo

but use a 11.2 block, not a 10.300,if you use a 10.3 then stay w the 4.500 arm