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02 vs 03-05 HP/TQ ratings
Whats up everybody?
I just got a 2002 ZR2 Blazer which I am absolutely loving so far. Just have a question for you pros out there. Tried doing some searching but was having trouble finding the answer I was looking for. I noticed that in my year(02) the power rating on this 4.3 was 190HP/250ftlbs However, the rating for the 03-05 4.3 was 195HP/260ftlbs I know the fuel injection spider got upgraded in 03 but what else was changed to up the power slightly? I heard that around that time frame they put in a different cam to smooth things out. Anybody know what year that was? Hopefully somebody can help me shine some light on this subject. Thanks so much in advance! |
Originally Posted by Dan Watson
(Post 713415)
Whats up everybody?
I just got a 2002 ZR2 Blazer which I am absolutely loving so far. Just have a question for you pros out there. Tried doing some searching but was having trouble finding the answer I was looking for. I noticed that in my year(02) the power rating on this 4.3 was 190HP/250ftlbs However, the rating for the 03-05 4.3 was 195HP/260ftlbs I know the fuel injection spider got upgraded in 03 but what else was changed to up the power slightly? I heard that around that time frame they put in a different cam to smooth things out. Anybody know what year that was? Hopefully somebody can help me shine some light on this subject. Thanks so much in advance! |
So the difference was the new fuel spider and the new cam in 03?
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