Hello, I would like to know if there is a possibility to differ a Super Rocket from a Starfire Engine in a 1967 98 (other than the air cleaner decal).

I have found the codes UN, UO, UR, UP and UQ in a factory document but no idea where to find them on the engines.

Thanks in advance!

 

The Sfire engine would have factory dual exhaust and the air cleaner snout slightly larger and longer than the regular 4bbl breather. Not sure about engine codes or cylinder head stamping numbers.

 

There were no Starfires in production in 67. Last year was 66.

 

True but the Sfire 425 engine was still an option in the Delta and 98 in 1967.

 

OH, that's good info!

 

There were several differences between the 375 HP Starfire V8 (RPO L75) and the 365 HP Super Rocket V8 (RPO L74) in 1967. There was a bump in compression from 10.25 to 10.50, dual exhausts vs. single, and a different cam (P/N 396190 with 286/280 duration and .472/.461 lift vs P/N 393964 with 278/282 duration and .430/.432 lift).