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Old 01-10-2013, 01:35 AM
cdminter59 cdminter59 is offline
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Edelbrock C427x manifold

Why are you stuck on the .060 bore? When taking a block in to the machine shop usually you would bore the block to what it takes to clean up the cylinder walls. Sometimes boring to larger bores can cause problems such as overheating. I not saying it will happen on your 454 the walls are pretty thick. There is 7 cubic inch difference between a .030 block and a .060 block. Bore it as you like and use Probe forged piston P2465F-060. Take a look at post #12 the parts I listed are the almost same as Vinnie built his engine. The specs on the Comp cam Xe274H is .552/.555 lift 230/236 duration. You will need a good 3000 rpm stall like Hughes HUP-GM30. 400 hp and 510 lbs torque is considered a mild oval port engine. Have the block zero decked. Work on the heads by installing 2.19 intake valves and 1.88 exhaust valves. With this setup your static compression will be 9.687 and the DCR will be 8.269 excellent for pump gas.

Last edited by cdminter59; 01-10-2013 at 01:51 AM.
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