Quote:
Originally Posted by rigon4
It will not have the 400 in it but worse I have a very strong 355 I had built for my 2wd 81 blazer I was thinking t-5 instead of th400 than put 4.56 in the rear and not the 3.73/4.11 I want
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I would sell it and find a T-56. They are rated for about 425 hp from the factory depending upon which vintage you get and have the aftermarket support to make them live in 9-second drag cars and 600+ hp Vipers so it should work great in your Blazer.
The double overdrive is pretty nice too. My 98 Camaro had the T-56. After I put in 4.10 gears I was still only at 1900 RPM at 70 mph in 6th with tires that were under 26" tall.
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69 C10 shortbed stepside 400 small block - built like what a super sport truck could have been
https://67-72chevytrucks.com/vboard/...d.php?t=484426
69 K20 lwb TBI 350 4L60E NP208 14-bolt Dana-44 w/disc
68 Camaro SS / RS 500hp 439 inch roller cam big block 4L80E