I've just finished putting a 79' 350 engine into a 85 Z28 with a 5 speed(T5).The swap was going well until i started to bolt on the starter from my 305.The bolt pattern on the starter was not matching up with the 350 diagonal bolt pattern.I then tried a number of diffrent types of starters, but no matches. Please help if you have a solution to this. Thank you in advance

 

as far as i know gm only had 2 starter bolt patterns, straight and diaganol.

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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM

 

Incase you didn't find the link in the other thread where you asked about this I'll post it again.

https://www.thirdgen.org/messgboard/...ML/002835.html

As you can see, we tried every concievable way around it. Although I am suprised that your 79 block doesn't have the extra hole, my 76 block does.

 

My 1977 block has both bolt patterns. Maybe it's just truck blocks that have both patterns. Who knows. Your gonna have to drill that extra hole. Drill it with a 5/16 and tap it with a 3/8.

Brad...


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1986 SC Camaro
Mods: Threw 2.8 in garbage, put in rebuilt
350 .060 over, XE268H Comp cam, Edlebrock
Performer Intake and Edlebrock 600 CFM Carb,
Pete Jackson noisy GearDrive (which sounded
cool for about 5 minutes, now I'm sick of it)
Rebuilt TH350, 3.42 Rear Gears. LCA RLB's.
B&M Mega Shifter.
Now has T5 in it. YES!!!
CenterForce Dual Friction Clutch.