Who's built a 406?
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Junior Member
Joined: Feb 2002
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Who's built a 406?
Exactly that, I'm going to build one and was wondering about any problems with harmonic balancers and serpentine accessory belt drive and if there was any problems with balancing the motor for our application.
Not worried about intake, cam, or head selection, but what were any problems on the bottom end.
Thanks
Not worried about intake, cam, or head selection, but what were any problems on the bottom end.
Thanks
Supreme Member
Joined: Aug 1999
Posts: 1,443
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From: College Station, Tex USA
Car: 89rs
Engine: 400Sb
Transmission: Tremec 3550
connecting rod bolt to cam lobe clearance
if you use anything other than a stock rod or something that has been stroker clearanced.
Either internally balanance it or use a externally balanced flywheel and harmonic balancer. Its that simple.
Either internally balanance it or use a externally balanced flywheel and harmonic balancer. Its that simple.
Supreme Member
iTrader: (10)
Joined: Jul 1999
Posts: 1,780
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From: Fla
Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
The older heads dont have all the holes for the serpentine brackets. If you use a modern head the holes should all be there. The block already has the two bolt holes on each side for the brackets.
The larger balancer made slight contact with the oil cooler water lines. I just bent them a little for clearance.
The larger balancer made slight contact with the oil cooler water lines. I just bent them a little for clearance.
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