Engine Suffix and Corresponding Equipment Codes 1956-1991 � Lime Book

[Mark F.]

The Lime Book 1955-1991 5th Edition
Author: Edward W.J. McComas who reserves all rights, and does not grant permission for the use of this information for commercial or profit purposes.

[James W.]

[Larry E.]

[Mark F.]

Mark, The 1965 327/350 suffix code HU should have the power steering box checked. My '65 has 4 barrel carb, a/c, manual transmission, power brakes, and power steering. Thanks, James West

HU 65 327 350 4B,AC,MT COallavailableunavailable,

[Mark F.]

Another inaccurate entry is for the 1966 Corvette. It shows no code for the L88 but as I look at the GM Tonawanda Powertrain sheet give to us by Al Grenning at his seminar it shows "IT" was assigned to that L88 engine that may or may not have been built with an assembly#3893263. Larry P.S. IIRC the 66 Assembly Manual also makes reference to the L88 Engine

IT 67 427 430 4B,AH,HD(L88),MT CO
IT 68 427 430 4B,AH,HD(L88),MT CO
LO 69 427 430 4B,HD(L88),MT CO
LV 69 427 430 4B,HD(L88),TH400 CO
MR 69 427 430 4B,HD(L88),MT CO

[Larry E.]

IT 67 427 430 4B,AH,HD(L88),MT CO
IT 68 427 430 4B,AH,HD(L88),MT CO
LO 69 427 430 4B,HD(L88),MT CO
LV 69 427 430 4B,HD(L88),TH400 CO
MR 69 427 430 4B,HD(L88),MT CO

Mark:You did not not look at the right places. IT was indeed a L88 Code in 1966. Could you order one?
Roger Penske got one and won Sebring with it. Info at this time given to the public was "foggy" at best. Larry

[Mark F.]

Mark:You did not not look at the right places. IT was indeed a L88 Code in 1966. Could you order one?
Roger Penske got one and won Sebring with it. Info at this time given to the public was "foggy" at best. Larry

Hi Larry, gotcha (Roger Penske )
I also checked the '66 TIMJG...it's not listed there, either...
Methinks you probably had to have "special contacts" to get one in '66, eh?

[James W.]

HU 65 327 350 4B,AC,MT COallavailableunavailable,

[Mark F.]

It's just inconsistant based on similar 327/350 engines with a/c for 1966 and 1967. James

Hi James,

I agree - there doesn't seem to be a recognizable pattern...
I can't explain it though...it must be for specific configurations, different pulley sets, or some other critical element that applies to certain situations and not others...

[Duke W.]

Mark:You did not not look at the right places. IT was indeed a L88 Code in 1966. Could you order one?
Roger Penske got one and won Sebring with it. Info at this time given to the public was "foggy" at best. Larry

Just because a RPO code and engine suffix are assigned doesn't mean anything was built. The option first has to be RELEASED, and this didn't happen until the '67 model year.

A contemporaneous article in Corvette News about Penske's Daytona class win stated that practice and qualifying was done with the "stock engine". Then for the race a "Traco-built" engine was installed.

That "stock" engine was a L-72, and the Traco engine was a prototype L-88 with parts supplied by Chevrolet.

The L-72 with the racing exhaust system and Chevrolet engineering supplied cold air induction system that was installed at Penske's Pennsylvania shop was only down about 60 HP from the L-88's peak output, so it made sense to practice and qualify with the L-72 as qualifying position in a 24 hour race doesn't mean much, and save the L-88 for the actual race.

I wonder what happened to that L-72 with its St. Louis VIN derivative stamp.

Duke

[Larry E.]

Just because a RPO code and engine suffix are assigned doesn't mean anything was built. The option first has to be RELEASED, and this didn't happen until the '67 model year.

Duke

[James W.]

Hi James,

I agree - there doesn't seem to be a recognizable pattern...
I can't explain it though...it must be for specific configurations, different pulley sets, or some other critical element that applies to certain situations and not others...

[Duke W.]

[Larry E.]

When I first read the thread about the Pedro Rodriguez '66 L-88 it didn't ring a bell. Maybe it's the power of suggestion, but eventually I think I found a vague memory about it. It seems to have been out of the public eye for quite some time, especially compared to Penske's '66 Coupe that is well known to many of us.

I recall the thread said that the car had been raced over the years, but I know very little about it's history other than what was stated in the thread.

Too bad Pedro never drove it. He was one of my favorite drivers back in the day.

Duke

Hay Duke>You will have find that "Trust Fund" you talked about and then you can bid
on it when it hits the floor in Kissimmee! Maybe Six Figures?? Larry

[Richard M.]