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I just purchased from A.R Racing a 406ci with polished canfield alum heads, polished air gap intake,steel crank,pink rods,hyperticnic pistons,7 quart pan,hyd comp cam,roller rockers,etc.450hp-480ft pounds of torque for $3,995.00
I also purchased a flywheel for $95.00.I am putting this motor in my 76 wide body 4 speed car in the fall.
I thought this deal was hard to beet for the money.
Just my 2 cents worth.
Some of the GM performance crates are overpriced. If I were doing a camparo, I would make a decision on the name recognition of the builder, warranty and then $/HP.
If your rod problem didn't cause too much damage why not rebuild the L-48? Cost would be minimal compared to a crate engine and your potential resale value would remain high with the original engine.