Thread: Quest for 10s 396/402 Big Block build (Big Block Guru's welcome)

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Originally Posted by jerry clayton

I'd bet that the reason the two cranks failed is that they were/were not balanced and had wrong combo of flywheel/flex plate------------

guy ran a paint shaker all day at home depot ... hell with the balance..that engine runs smooth

Hey pat if this helps any, my 396 block # is 3955272 and the heads on it are 3931063.
Im going to be pulling them off this weekend to sell to save for those AFR heads

just close chamber heads and Gm block . you know you could build this with the bigger 4.000 crank hyper pistons should fit ? with your head s you have . would have to check this should be ok may need some tune up work for fit. some head work .roller cam let it rip save the money for a 540/565 street engine pump gas or a 496/511 street engine with good heads i have heads for the big engines and parts .in stock i have the dart 335CNC .345.355CNC heads i have but nothing in a o port right now in the small chamber you will need less then you want a 489/511 then i can get you some heads

It has CE stamped on the block, i tried to google it and all i get is "customer exchange" so maybe it was a warrantied out motor sometime in it's life? I have no clue what it stands for. What i want to do though is push that 402 into the mid 10s, people are bashing me because it's the small BBC but i want to prove them wrong. Im going to tear it down and sell what i can out of it. You've already got me set on those AFR magnum oval port heads to stick on there, i sent the link to in the earlier page