VinceP

I have been trying to figure out what the Lxx engines stands for I am having no luck It seems like I should find a chart saying what year what engine It seems like a easy question I have no luck thanks Vince

Nowhere Man

Find the book called the Corvette Black Book

Bowtyeguy

https://www.corvetteforum.com/forums...questions.html


check that thread I am not sure if its what you are looking for

65hihp

I am just a confused by this as you are maybe more sure would love to know the answer but I will be surprised if anyone here answers it thanks

VinceP

It is starting to look like you are right

John McGraw

GM used a L followed by two other numbers or letters to identify their different engine RPO options. Examples would be a RPO L75, which would be a 375 horse 396, a RPO L48 is a 300 horse 350, a RPO LS6 is a 405 horse 5.7 liter Ls engine.

It is worth noting that GM has re-used some of the most popular engine designations from over the years. Examples would the the LS6 which can either be a 405 hp aluminum LS engine, or a 450 hp iron big block engine.

The LT1 was an iconic small block engine for the Corvette in the seventies, but it also the current designation for the new base Corvette direct-injection engine. LS7, LT4, and several others have been recycled.


Regards, John McGraw

John McGraw

Here is a list of GM RPO codes. You can scroll down to the L section and see that there are almost too many engine RPO codes to count, and several have been used more than once.

http://www.crankshaftcoalition.com/w...GM_master_list



Regards, John McGraw

VinceP

Thanks John