I'm planning a hotter cam, intake and a mild head port job on my motor next month. I've been digging out old receipts from the PO and found the engine rebuild parts list. When I bought the car 2 years ago, it had even compression in the 170 range on all cylinders. It still runs good with no smoke so I was planning on leaving the bottom end alone.
My distressing findings related to the pistons he ordered. Part number FED-273AP40. I researched this through Summit and found this:
http://store.summitracing.com/partdetail.asp?part=8359
The only difference is that mine has a '40' on the end referring to the overbore.
I'm hoping you engine guru's can tell me that the compression I should have is higher than they state here at 8.2:1 with my stock heads. That would be terrible! My car runs like crap on anything other than premium but would explain why it's down on power compared with other stock 289's...
If I'm wrong, what might my compression be with this piston and stock cc heads? Or how can I work it out?
My distressing findings related to the pistons he ordered. Part number FED-273AP40. I researched this through Summit and found this:
http://store.summitracing.com/partdetail.asp?part=8359
The only difference is that mine has a '40' on the end referring to the overbore.
I'm hoping you engine guru's can tell me that the compression I should have is higher than they state here at 8.2:1 with my stock heads. That would be terrible! My car runs like crap on anything other than premium but would explain why it's down on power compared with other stock 289's...
If I'm wrong, what might my compression be with this piston and stock cc heads? Or how can I work it out?