[lunaticwv]

has anyone ever heard of this before? i recently bought an 87 iroc with a 5.7 tuned port injection stamped on the rear bumper and the emission sticker states 5.7. however the engine code says f which signifies a 5.0. any answers?

 

[67 Plum]

Welcome to TC.Get the numbers from the passenger side of the block flat surface in front of head.

 

[lunaticwv]

theres no no. on the flat surface of the block in front of the head. just like the 350 4 bolt main i'm installing in another camaro. cant see the casting no. on the rear of block either.?

 

[Rsmith1969]

Mid to Upper 80's Camaros that were sold in California would have been 5.0's maybe the emblem was changed , or maybe the block has been rebuilt and decked thus eliminating the stamp off the front pad. Do a search on Front pads there are some posts on how to use a mild acid solution to bring the numbers back out ,