68-75 sbc into iroc.. what flywheel and starter to use?
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Member
Joined: Nov 2006
Posts: 139
Likes: 1
From: KCMO
Car: 88 vert iroc & 95 586hp trans am
Engine: 355
Transmission: 700r4
Axle/Gears: 373
68-75 sbc into iroc.. what flywheel and starter to use?
original iroc flywheel and started wont fit the older block. need cheap suggestions asap.. was a 305 motor, now going to 350 if that helps.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 68-75 sbc into iroc.. what flywheel and starter to use?
Need 153 tooth flywheel to suit 2 pce seal block.
If your 305 flywheel was 153 tooth no starter change needed
if block doesn't have the 3 bolt holes drilled then 3rd hole can be drilled and tapped for straight across (153 starter ) pattern
If your 305 flywheel was 153 tooth no starter change needed
if block doesn't have the 3 bolt holes drilled then 3rd hole can be drilled and tapped for straight across (153 starter ) pattern
Thread Starter
Member
Joined: Nov 2006
Posts: 139
Likes: 1
From: KCMO
Car: 88 vert iroc & 95 586hp trans am
Engine: 355
Transmission: 700r4
Axle/Gears: 373
Re: 68-75 sbc into iroc.. what flywheel and starter to use?
no way around it huh? not lookin to take to a machine shop to do.. this motor is just used to pass inspection and will be getting yanked right after.. is the only way to know teeth count, is to coutn each tooth? or will there be a part number?
Joined: Mar 2000
Posts: 43,187
Likes: 42
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
You can measure the diameter of the flexplate/flywheel. 14" = 168 tooth, ~12-3/4" = 153 tooth.
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