Starter Question
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
the different starter bolt pattern is to change the offset for the different diameter starter wheel. when upgrading trans, you have to know what starter wheel you are getting and then know whether or not it'll bolt to your crankshaft...anything after 85 uses a smaller bolt circle on the crank flange and won't fit an older engine.
Le Mans Master
Joined: May 2006
Posts: 5,814
Likes: 414
From: Pittsburgh suburbs Pa.
Differ from what ? The 327 has the same diameter ( small ) flywheel as the GM 6 cylinders which takes the starter with the bolts straight across. The 350 takes the larger flywheel with the staggered bolt starter . Where do we differ ?
Le Mans Master
Joined: May 2006
Posts: 5,814
Likes: 414
From: Pittsburgh suburbs Pa.
OK , 8 cylinder with large flywheel for standard or large flex plate for automatic would take the starter with the angle bolts. (Same starter). 6 cylinder GM or 327 with small flywheel or small flex plate would take the starter with the bolts straight across . (Same starter) for standard or automatic.
Melting Slicks
Joined: Jun 2003
Posts: 2,802
Likes: 241
From: Niles, MI
There are 2 different Chevy starters for 2 different diameter flywheels/flexplates. Straight bolt pattern on the left is for 153 tooth; offset pattern on right is for 168 tooth. Nothing more to it than that.
Le Mans Master
Joined: May 2006
Posts: 5,814
Likes: 414
From: Pittsburgh suburbs Pa.
