Thread: Blown 327

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I have a 1964 El Camino with a 200-4R Trans and 3.73 posi Rear Gears. I want to build the short block that I have to handle a blower. Currently I have a 30 over 350 4 bolt (ARP Main Bolts) block, Forged 327 crank 10/10, Forged Eagle Rods with ARP Bolts, and Forged Flat Top Pistons with 4 valve relief. What else will I need to run a Weiand 144 blower? Heads? Cam? Carb? Stall Converter Size? etc This will be a Street / Strip but mostly Street.

Thanks.

I'd build it 8.5:1 static compression ratio and run max boost at 6 psi to coordinate with pump gas max cylinder pressure. Howards CL113215-10 hydraulic roller cam and lifters kit, Pro-Filer 185 heads w/72cc chambers, 10" 2500 stall converter (plan on spending $500+), 800 CFM blower carb (at 6K rpm's, this motor will be pulling 809 CFM). Calculate the stack of parts that you will use (piston compression height, rod length c-c and half the crank stroke) and cut the block decks to zero based on the stack dimension. You'll need to do this because you will need to use a thick composition gasket to save the aluminum heads from fretting. Fel-Pro 1003 is the default gasket to use on a 4" bore SBC. With the deck at zero and using a 0.041" thickness head gasket, your squish/quench dimension will be 0.041", just right for helping to prevent detonation on pump gas.

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