I'm a relative engine idiot so bear with me please...
The rockers on the 409 my father in law is helping me build are worn past what he considers acceptable. So he said I should upgrade and get roller rockers...
I've read a lot about aluminum fatiguing and this is just a ski boat, so lower maintenance and longer life are desirable. SS and chromolly steel seem to be the better choices.
It seems to me that needle bearings would reduce friction, but I understand the possibility of them failing and sending alot of small pieces of hardened steel into the motor.
I'm told that 1:7 will work on the 409, but stock is 1:75. There are a few 1:75 Chevy available, but also some 1:72 and 1:75 Fords...will the fords work, should I stick with the 1:7 BBC, am I overthinking this?
If I change out the cam and go with a roller cam later can I keep using the same roller rockers?
I'm looking at Harland Sharp (based on reputation), Comp Pro magnum, and Crower. And comments or other recommendations?
Thanks for your expertise!