IdahoLT1

Whats the difference between the LT1 in the caprice's and the LT1 in the F-Body. All i know is that the caprice has cast iron heads resulting in a 15hp drop. Do the still have hardened pushrods, any big differences that could cause problems with a head/cam install?

Bersaglieri

They have a different designed WP I know that much. Slightly better flowing heads, but not aluminum. Hardened pushrods are iffy on what if any Fbody's got them.

-Dustin-

IdahoLT1

Right now i have a caprice lt1 in my car cuz the original owner blew the motor by not upgrading to double valve spring with the cc305. I heard 93-95 Fbodies had hardened pushrods. the caprice heads flow better? so should i get those port and polished or should i do the stock alum heads?

Bersaglieri

I'd put aluminuns on there personally. No one knows what years had hardened but some only cost $30, its been debated with no conclusion.

-Dustin-

redemn93

i know 93s had hardened push rods. dont know about other years though

Mean Green

Just spend $30 and know for sure you have hardened pushrods.

96capricemgr

As noted those iron heads you are so convinced are bad flow MORE than your aluminums. The HP drop is due to a more torque targetted cam, restrictive intake and exhaust, and 87 octane. While it may be down on peak hp a little it make more torque at a lower rpm EXACTLY what the b-body needed..
The b-body got hardened pushrods the same years the f-body did

IdahoLT1

I actually had no idea that the iron heads flow better. the only difference i knew about was the difference in heads so i just assumed that the alum. heads were on the more performance oriented car so that the caprice had less hp because of them. thanks for the help and the info.