[Excaliber]

I'm considering changing out the pistons for a lower compression ratio, and then going with a much more mild cam with a 3000 to 6000 rpm range. Flat tappet would work well in this application, hydraulic rollers maybe.

I would then also change out the valve springs to single or dual springs, 150 lbs rating or so. This should make the engine much more streetable and still maintain "decent" power and long life.

Iron heads with 63cc combustion chambers and "pop up" pistons. Cranking cylinder pressure was 230-240 lbs measured with a compression tester (12.5 to 1). I would like see that drop to 150-170 max.

I LIKE the original iron high riser heads and matching dual four intake, so alloy heads are not an option. I want to keep the motor in the "spirit" of 1966. I'm think flat top or even "dished" pistons to get C.R. down to about 10 to 1. I will even consider the original 425 horse power OEM style cam (to keep it "real").

The gear ratio is simply to high for the reduced horse power I'll be looking at. A ring and pinion change to 3.5 or so gear would be about right.

Hmmmmmmm,,,,, much of the fun is in the planning!

No way a guy could "clean up" that damaged cam lobe! The cam is toast, no doubt about it. Emory cloth was a joke all ready!!!


...then again I could just buy the same cam I had before and continue to terrorize the local drag strip! That BIG horse power is just SO cool.