Difference between engines
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Junior Member
Joined: Oct 2004
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From: FLA
Car: 1988 Z28
Engine: 357 ci 472 hp at RWs
Transmission: 700r4
Difference between engines
Hey guys help me out. What is the difference between the LT1, LS1 and the 1982-1992 5.7L engines. such as will the headers off an LT1 but up to a 1980's 5.7L? thanks
Joined: Feb 2001
Posts: 13,764
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
This applys to F-body's. The motor generation changed were always a year ahead for the vette.
'82 thru '92 were Gen I motors (TBI, TPI, LG4 etc)
'93 thru '97 LT1's were Gen II motors and shared the same basic external geomtery and part design as a Gen I with some different features such as reverse cooling heads and a distibutorless ignition (Opti Spark). The '98 thru '02 LS1 is a Gen III motor and shares next to nothing with the other two. Nothing on it is interchangable (minus a few meaningless things). The LS2 is the Gen IV motor and the differences of that to the LS1 are much like the differences from the Gen I to the Gen II LT1. They share the same basic geomtery and part design with just some improvements and advancments in engine technology.
'82 thru '92 were Gen I motors (TBI, TPI, LG4 etc)
'93 thru '97 LT1's were Gen II motors and shared the same basic external geomtery and part design as a Gen I with some different features such as reverse cooling heads and a distibutorless ignition (Opti Spark). The '98 thru '02 LS1 is a Gen III motor and shares next to nothing with the other two. Nothing on it is interchangable (minus a few meaningless things). The LS2 is the Gen IV motor and the differences of that to the LS1 are much like the differences from the Gen I to the Gen II LT1. They share the same basic geomtery and part design with just some improvements and advancments in engine technology.
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