Do I really need a beefier tranny?
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Junior Member
Joined: Apr 2004
Posts: 27
Likes: 0
From: Winnipeg, Manitoba, Canada
Car: 1989 Firebird
Engine: Custom 355 V8
Transmission: TH-350 with 3000 converter
Do I really need a beefier tranny?
I was at my local speed shop the other day, and the salesman tried talking me into a B&M transpak kit. Its a kit that includes everything to strengthen yoour tranny. I have a 355 Chevy V8 that is cranking out about 380 horse and he said that this kind of power would rip apart a stock 3 speed trannny. Also, he said that if you blow up your tranny, your torque converter will also go with it. Are both of these things true? Please help.
Supreme Member
Joined: Sep 2002
Posts: 2,967
Likes: 0
From: Elk Grove Village, IL
Car: 1989 TransAm GTA
Engine: One sweet modified 355 TPI.
Transmission: The kind that shifts....
The B&M shift kits don't have a real good history with 700r4's. But then again, you aren't using a 700r4.
I'd go with a TransGo kit over a B&M kit any day.
I'd go with a TransGo kit over a B&M kit any day.
Supreme Member
Joined: Aug 2001
Posts: 1,109
Likes: 0
From: Hillsborough, NJ
Car: 1990 IROC
Engine: L98
Transmission: TH700-R4
a buddy of mine has a B&M kit in a th300 behind a 355. shifts waaaay to hard at part throttle. plus i havent heard the best things from the B&M kits. i have transgo's in both my cars and i love it. wouldnt use anything else
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TinnMann2
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Jun 18, 2017 05:10 PM
