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08-13-2010, 07:21 PM
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496 Bbc
Anyone running or built one of these? Care to share your choice of components?
A friend wants be to build one for his TH400,3.42,chevelle,street use,pump gas friendly. Should i go with stock length rods or the longer 6.385 rods? Brodix 270 race rites fill the bill? Having a hard time coming up with pistons for around 9.5:1 CR with either 110 or 119cc chamber heads. Thinking around 236º-242º intake duration at .050 hydraulic flat tappet. Thoughts? 
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08-13-2010, 07:37 PM
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I have built one with the Brodix head. I think that is the only oval port aluminum head out there. SRP should have a piston in the 10.2:1 range which should work with a 230@.050 cam on pump gas. I believe that engine made about 600hp and 650ftlbs. I have also built a couple with stock 781 heads with only minor porting that werent dynoed but ran very well.
I just did a 454 with the ProComp heads that made 500hp and 560ftlbs on pump gas, also with a hyd roller. The ProComps did have a piston interference issue, but it was minor. The Eagle crank and rods worked well for me.
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08-13-2010, 07:42 PM
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Thank you for the info, Any clearance work that needs to be done on the block?
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