Make 650 hp with a 540 Chevy Big Block and Edelbrock Oval Port 325cc Heads. – Hot Rod
In part one of this 540-inch big-block engine build, we assembled a short-block using Edelbrock’s new 5.400 bore cast-iron block. With the pistons at zero deck and the cam installed, it was time to add cylinder heads.
Edelbrock E-325cc Oval Port head
The E/I column represents the exhaust-to-intake flow relationship expressed as a percentage.
Stock intake valve length is 5.244; this head uses 5.350, or 0.106 inch longer
Stock exhaust valve length is 5.350; Edelbrock uses 5.450, or 0.100 inch longer
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