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Original Message
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RE: Identification |
By John Saxon - 08/26/2002 9:23:25 PM; IP 205.188.209.109 |
Timothy I got so caught up in this squabble about bore size that I lost sight of your original question.By all means follow Royces advice on finding a reputable engine builder try to find one that uses the philosophy of doing only what needs to be done to meet your goal because it is very easy to spend someone elses money.As far as block choice I still have to pick the HD truck block find one that shows signs of having thick walls and have it sonic mapped and follow your engine builders advice on how much to bore and still leave plenty of wall thickness for structural integrity and good ring seal.The sad fact is that even NOS 427 and 428 blocks are marginal when approaching the power levels you are shooting for.Just look at the Nascar teams experience back in the 60's with cylinder wall cracks the revised blocks with the squared off cylinders helped the situation but did not eliminate it.And more recently Super stock racers running 428's as they exceed 600HP they begin to have problems with ring seal due to bore flexibility.So try to minimize overbore and if more cubes are needed run a 428 crank or investigate the new Scat cast stokers,I believe they are advertised as being good for over 600HP but see if you can find someone who has used them.With head and intake offerings from edelbrock and modern street roller cams 600HP should easily be within grasp from a 390 based engine.Face it if some Chevy driving geek can get 600 steertable HP from a small block and backwards cap wearing punks can get 450-500HP from a honda 4 cylinder then surely a mighty FE can fill the bill right? |
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