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How do I know if I have a LT1?
To identify a GM LT1 engine, check towards the front of the passenger side of the engine block where there is a machined pad with an 8 digit ID number. In order, the engine code identifies assembly plant, month, day, and engine suffix code. 10125327 is the casting number of all 92-97 LT1 and LT4 engines.
Which LT engine do I have?
Much like with LS engines, the easiest way to be sure which LT engine you have is to check the 8th digit of the Vehicle Identification Number (VIN).
How can you tell the difference between LT1 and LT4?
The rocker arms also have a roller tip. The LT4 has 1.6:1 and LT1 has 1.5:1 Rocker Ratio….
| Specification | LT1 | LT4 |
|---|---|---|
| Crankshaft | Cast iron | Cast iron with undercut and rolled fillets |
| Cylinder Heads | Cast Aluminum, 2 valves/cylinder | Cast Aluminum, 2 valves/cylinder |
How can you tell if you have a 2nd generation Z28?
Identifying a Second Generation Z28: Like always the best way to truly identify a Z28 is by the engine. On Norwood, OH assembled 1970 and 1971 Camaros check the Trim Tag. Unfortunately for Van Nuys assembled Camaros the engine is it. Engine changed to 350 cubic inches.
What year is LT-1 engine?
The first LT-1 (with a hyphen) engine was introduced in the Corvette in 1970 as an option. It was a raucous, racing-inspired engine with solid valve lifters, a high-lift camshaft and high-winding personality that redefined Small Block performance.
What year Corvette has the LT-1?
The LT1 Engine was used in Corvettes from 1992 to 1996. The LT1, named as a nostalgic nod toward the ever-noteworthy LT-1 of 1970’s fame, began its time under the hood during the 1992 production year.
How can I tell if my 1979 Camaro is a Z28?
Look for an “L” as the fifth character in the VIN. This signifies that your Camaro has a 350 cubic-inch engine, which came stock in the 1979 Z28.
How to tell if a Z28 is original or not?
More often than not, the Z was left out on the NOR cars, so you have 28.10 etc. In 1971 the Z28’s still got the floor mounted gas pedal. They are repoping them, but you can usually see that they are not original. Good Luck, especially if it’s got the LT1, that is one BAD engine!
How do I identify a GM LT1 engine?
To identify a GM LT1 engine, check towards the front of the passenger side of the engine block where there is a machined pad with an 8 digit ID number. In order, the engine code identifies assembly plant, month, day, and engine suffix code. 10125327 is the casting number of all 92-97 LT1 and LT4 engines.
What is the Z28 code on the T Tag?
Wheel Code: AU, Part #: 3983045, Center cap part #: 3989479, Trim Ring part #: 3984524. If it was a California car (BL), there will be no Z28. or 28. code on the TTag. More often than not, the Z was left out on the NOR cars, so you have 28.10 etc.
What are the engine suffixes for the Chevy LT1?
As the LT1 was a special edition, high-horsepower engine, a summary of a Chevrolet listing from Nasty Z28 gives the following suffixes for the LT1: 1970-CTC, CTB, CRT, CTR, CTU, 1971- CGY, CGP, CGR, CJK, CGZ and 1972-CKZ, CKY, CKT, CKS, CRS, and CRT. Engine suffix codes matching these identify an original LT1 engine block.