402+t56?
08-13-2012, 01:38 AM
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Car: 87 Iroc-Z
Engine: 305 tpi
Transmission: 700-r4
Axle/Gears: 3.42
402+t56?
I have a 71 325hp 402 that I am thinking about rebuilding as my first motor. I understand that the 396/402 has a neutral crank does that mean I can use an off the shelf t56 flywheel.
08-13-2012, 06:46 AM
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Re: 402+t56?
The one thing I don't get is the 402's aren't a 396 or a 454.Hummm,that could mean they are really cheap to buy.Right??. Big question is WHY??. Just some food for thought. Oh they have the same wt as a 54,but not the same power.............
08-13-2012, 02:23 PM
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Car: 87 Iroc-Z
Engine: 305 tpi
Transmission: 700-r4
Axle/Gears: 3.42
Re: 402+t56?
A 402 is just a 396 with a factory overbore that makes it just a hair bigger. They were even called 396s
08-14-2012, 12:28 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You can't use an off-the-shelf T56 flywheel because the engines T56s came behind were one piece rear main seal. As you might guess, a '71 402 is 2-piece rear main seal.
But, you could use a neutral-balanced 2-piece RMS flywheel made for a T56.
But, you could use a neutral-balanced 2-piece RMS flywheel made for a T56.
