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- 8:21 PM
- Jun 30, 2008
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Almost all of what you wrote is not helpful since you did not include any cam information like duration and lift as well as what pistons your running that may or may not have a valve relief for clearance. The deck clearance (.015 in the hole with the head gasket of .027) is mostly helpful elsewhere and of minor use to the poster. Though it does help clue in your tight clearance to what ever super secret cam your running.I run a 400 block 451 in my 68 Sport Satellite with RPM heads fitted with big valves, RPM intake, 1.5:1 stock iron rockers, Mopar finned aluminum valve covers, and Schumacher Tri-Y headers. Stock distributor fits fine. My flat top pistons are .015" in the hole with .027" Cometic gaskets and clear just fine.
Remember that for these Eddy RPM aluminum heads, they take a different length plug that is longer than the requirement for the stock iron heads.
Regardless, your new bore and stroke as well as pistons are a vast change from a stock 400 B&S and piston depth.
Why did you post this again?