LS1 Trailblazer conversion
Im going to be getting one next year for the girlfriend. now i just need to convincer her that i need to swap in a 5.7 or 382
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We've actually had a couple of the Trailblazer I6's in here to make wiring harnesses for; here's what the tranny end looks like:

BUT, since the newer 4L60E's are a 2 piece case, you could probable leave the trans in place and just unbolt the I6 bellhousing and swap in the V8 bellhousing.
I've got an 04 GMC Envoy extended with the V8 and really like it. If you find a wrecked one of these with the V8, I would recommened buying it, as the 5.3 V8's used in all of these (no 4.8 available) are the aluminum block LM4 instead of the iron block LM7 used in other trucks!!
Also if any special brackets are needed to put the V8 in the short version, the Buick Ranier would be the place to get them. It is the only short version that had the 5.3 available as an option.
The all aluminum 5.3 (LM4) comes in:
03-04 Chevy Trailblazer extended
03-04 GMC Envoy extended
04 Buick Ranier
04 Chevy SSR

91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
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The Best V8 Stories One Small Block at Time
Oh gotcha. I remember hearing about them testing the TT, too bad they never did anything with the testing, new ty or syclone would be way better than the ssr.
I'm looking at a 4L60e tranny from a 6 cylinder trailblazer to bolt behind the 5.3 in my 76 camaro.
I have a V8 bellhousing I can swap out, but my question is:
The torque converter will need to be swapped too correct? I can't use the 6 cyl torque converter in a V8 bellhousing attached to the V8?
I'm looking at a 4L60e tranny from a 6 cylinder trailblazer to bolt behind the 5.3 in my 76 camaro.
I have a V8 bellhousing I can swap out, but my question is:
The torque converter will need to be swapped too correct? I can't use the 6 cyl torque converter in a V8 bellhousing attached to the V8?
Andrew









