Assuming they're in good condition there's no reason why you can't turn those kind of revs.
The big enemy of aluminum rods is fatigue fracture which is the result of work hardening that comes from the constant changes in loading from compression to tension and back again as the engine passes thru its cycles. This alternately stretches then compresses the rod which is something that aluminum has problems with when it's encountered over a long period of time.
For this reason in a race engine the rods are frequently inspected for stretch and cracking. In street engines and long distance racing engines it is often felt that aluminum rods don't offer sufficient longevity. But there are plenty of exceptions to the popular wisdom.
Aluminum rods are nice with blower and nitrous engines as well as those running rocket fuels like nitro-methane and will offer some protection to the rod bearings on engines that run in detonation as the aluminum will give a bit softening the blows on the crank journals.
Be sure to re-balance and add about .010 to .015 inch clearance between the piston crown and the head's squish/quench deck as aluminum rods will thermally grow more than steel rods so without a little additional clearance there is the risk of running the piston into the head.
When checking ferrous metals for cracks, a magnetic procedure is used (magnaflux). Since aluminum is non-ferrous, a dye penetrant procedure is used. See if you can find someone in your area who can Zyglo the rods before you install them or purchase a Zyglo kit and do it yourself.... http://www.magnaflux.com/penetrant/penetrant.stm
A 4" bore is a necessity to fit anything larger than 1.94/1.50 valves. Soo, if you want it to breathe and make some power you need to have at least 3.975" of bore for 2.02/1.60 valves, and actually use them.
If you can get the 302 pistons for a reasonable price, and the block checks out for a 0.125" over, go for it.
and it has small journal mickey thompson aluminum rods he also said he'll throw in the crank
he said since they were in his shop collecting dust he would sell them to me for 100 bucks
I also have some powerpack heads i would like to ream and put bigger valves in would 2.05/1.60 be too much for the 302
Are you even Reading the responces offered to you here,..??
What is the History of those Aluminm Rods,..??..?? If they're Used,... They're Junk,.. Wall hangers,.. NFGood.....
A 4" bore is a necessity to fit anything larger than 1.94/1.50 valves. Soo, if you want it to breathe and make some power you need to have at least 3.975" of bore for 2.02/1.60 valves, and actually use them.
If you choose your camshaft wisely the engine will do just fine. If you peek in the cam catalog and select what you think would be the right cam, move UP one place and you'll have it.
once again thanks for all the help this forum has already helped me a lot
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