1989 305 tpi-400/406 tpi how?
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Joined: Sep 2008
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Car: 89 Formy
Engine: carbed 355ci
Transmission: A4
Axle/Gears: 3.73 10 Bolt
1989 305 tpi-400/406 tpi how?
Hi, im just curius as to how you can get a 406 Tpi...i i know u can slap vortec heads on there with a vortec tpi intake...but what about the whole serpintine belt drive system..does all that bolt right up?..and is there anything else im overlooking?
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The block won't change what bolts up except for the location of the dipstick and the type of flexplate/flywheel due to the externally balanced crank & 2-piece rear main seal.
I hope you're not overlooking the fact that the stock factory TPI hardware will absolutely choke off a 400.
I hope you're not overlooking the fact that the stock factory TPI hardware will absolutely choke off a 400.
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