Rebuilding the engine in my "64. Original L-76. Bored the block +.020
My dilemma is should I use the original style domed pistons or the flat top version. I know dome are correct but am concerned about detonation with todays gas.
Plan on using Speed-Pro products and with the 461 heads at about 64 CC's, -.025" piston deck height and a .032" gasket have calculated the following
Dome piston would give me an effective CR of 10.56:1
Flat top piston - effective CR of 9.34:1
I am aware no one will see the difference, but I hate to change from original. I am looking for a dependable engine, as I am older than the car and not rebuildable.
Also using the stock 30-30 cam. Car has a 4:11 rear
Any experiences, thoughts, insight appreciated
My dilemma is should I use the original style domed pistons or the flat top version. I know dome are correct but am concerned about detonation with todays gas.
Plan on using Speed-Pro products and with the 461 heads at about 64 CC's, -.025" piston deck height and a .032" gasket have calculated the following
Dome piston would give me an effective CR of 10.56:1
Flat top piston - effective CR of 9.34:1
I am aware no one will see the difference, but I hate to change from original. I am looking for a dependable engine, as I am older than the car and not rebuildable.
Also using the stock 30-30 cam. Car has a 4:11 rear
Any experiences, thoughts, insight appreciated
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