Places to buy a custom rotating assembly?
Thread Starter
Member

Joined: Dec 2007
Posts: 475
Likes: 3
From: Minnesota
Car: '88 Iroc
Engine: Single turbo Vortec 5.7, Megasquirt
Transmission: Probuilt 700r4 3000 stall Vigilante
Axle/Gears: Moser 9" 3.25 w/True Trac
Places to buy a custom rotating assembly?
I'm putting a turbo on my 350 sb and am looking to go with a new rotating assembly, swapping out the cast crank/rods/cast pistons with a forged setup. My engine is a GM 350 HO crate engine with 25k on it. It is standard bore 4.000. I'm thinking I won't need to bore it .030 except possibly for the sake of piston availability. Compression ratio is currently 9.1 but I want to get it down in the mid to high 8's. Finding an off the shelf rotating assembly does not look like it's gonna happen, since I want to stick with standard bore, low compression forged pistons and have a one piece rear seal block. Might even go 383, not much more $. Any good places to check out? Advice?
Senior Member
Joined: May 2006
Posts: 581
Likes: 0
From: NY
Car: 00 SSEi / 94 C4
Engine: 231 / 383
Transmission: 4T65E / ZF 6sp
Axle/Gears: 2.93 / Dana 44 3:45
Re: Places to buy a custom rotating assembly?
CNC motor sports AWESOME deals.... just do not let any mistakes happen while ordering. the return fees are INSANE
what 8's even my current vette 383 highend 12:1 build will push around 600HP
will not hit 8's
what 8's even my current vette 383 highend 12:1 build will push around 600HP
will not hit 8's
Supreme Member
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: Places to buy a custom rotating assembly?
I had mine from them too, chose all the parts and they ballance it http://www.cnc-motorsports.com/
Thread Starter
Member

Joined: Dec 2007
Posts: 475
Likes: 3
From: Minnesota
Car: '88 Iroc
Engine: Single turbo Vortec 5.7, Megasquirt
Transmission: Probuilt 700r4 3000 stall Vigilante
Axle/Gears: Moser 9" 3.25 w/True Trac
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