starter bolt pattern on 400 SBC?
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
starter bolt pattern on 400 SBC?
I know that on 350 blocks - you can find the offset and straight bolt pattern for starter motors. Corvette blocks usually use offset bolt pattern.. I wonder if 400 blocks are available with both patterns or if they are always a certain pattern??
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Originally Posted by 406shark
I can't say for sure about all 400 blocks, but my 1972 400 block, casting number 3951511, uses the offset mounting bolts. The starter in mine is a NAPA #46-4795.
Good luck,
Jeff
Good luck,
Jeff
Melting Slicks
Joined: Jul 2002
Posts: 3,128
Likes: 3
From: Deltona (son of Deland and DAYTONA) FL
Originally Posted by GrandSportC3
I'm going with a mini starter.. The starters for offset pattern are $50 - $60 more expensive
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Originally Posted by isosceles
how much weight does the mini starter save?
Instructor
Joined: Jul 2004
Posts: 245
Likes: 0
I just went out to my garage and checked my 400...it's sitting on my engine stand. Mine has a mounting hole with threads inline. It appears that either type of starter will work...at least on my particular block.
Do you have your engine handy? For $50.00 + dollars, I would check it for the dual mounts.
Good luck,
Jeff
Do you have your engine handy? For $50.00 + dollars, I would check it for the dual mounts.
Good luck,
Jeff
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Originally Posted by 406shark
I just went out to my garage and checked my 400...it's sitting on my engine stand. Mine has a mounting hole with threads inline. It appears that either type of starter will work...at least on my particular block.
Do you have your engine handy? For $50.00 + dollars, I would check it for the dual mounts.
Good luck,
Jeff
Do you have your engine handy? For $50.00 + dollars, I would check it for the dual mounts.
Good luck,
Jeff
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by isosceles
how much weight does the mini starter save?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
The ORIGINAL and bestest
Joined: Oct 2000
Posts: 10,009
Likes: 240
From: Toronto Ontario
Toronto Events Coordinator
My '73 406 has an offset starter bolt pattern. I used a CVR starter part # 5323OS.
It is a Canadian made unit, very high quality, and it cost me $130 CAN or about $110 US
Their web site:
http://www.cvrproducts.com/main.html
It is a Canadian made unit, very high quality, and it cost me $130 CAN or about $110 US
Their web site:
http://www.cvrproducts.com/main.html
Melting Slicks
Joined: Jan 2004
Posts: 3,247
Likes: 210
From: Detroit MI
If the block doesn't have both patterns the extra hole can be drilled and tapped. That's what I had to do with my 350 when I went to the small flywheel. And with the engine out of the car it would be so much easier, I did mine from below while the car was on the hoist.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Originally Posted by Schmucker
If you would have stayed with the manual trans you could have just push started it 
