Piston replace possibilities
After buying a badly running 1967 with a 1969 xh engine (350 hp)(48 heads). I find that it has at least two broken pistons. The car is an old drag racer and was probably over revved.
I am not inclined to drag race but would like a nice driver- is it possible to lower the compression (now 10.5 1) to say like 9.0 or 9.5 to 1 to make pump gas more acceptable or is this necessary? Since I am having to replace the pistons anyway, this would be a good time to do it. Are you guys running these HO engines able to get by on premium pump gas?
Oreilly,s only show 7.6 cr pistons or 10.75 cr. Is there a source for custom pistons with different compression ratios.
Also, I plan on driving this maybe 1000-2000 miles per year. Is it necessary to harden the valve seats while the heads are off?
I am impressed with the forum- please advise