427 Starter - 2 hole or 3 hole nose cone??
#1
Burning Brakes
Thread Starter
427 Starter - 2 hole or 3 hole nose cone??
Spent 2 hours searching forums, Colvins book, NCRS TIMJG, ebay and Im still confused on which starter nose cone is correct.
I currently have the "wrong" starter number with a 2 hole cast iron nose cone installed and starting the car just fine. I want to purchase the "correct" date coded starter to replace it with. My original 427 block appears to have 3 threaded holes for a starter to bolt on, but all my searching does not say if the 3rd hole is used or not.
Here are 2 pics of starters that should fit a 427 in 1968. Other than the Delco number stamped on the starter case, which nose cone is correct both in appearance for judging and functionality for driving?
thank you,
bigredbrad
I currently have the "wrong" starter number with a 2 hole cast iron nose cone installed and starting the car just fine. I want to purchase the "correct" date coded starter to replace it with. My original 427 block appears to have 3 threaded holes for a starter to bolt on, but all my searching does not say if the 3rd hole is used or not.
Here are 2 pics of starters that should fit a 427 in 1968. Other than the Delco number stamped on the starter case, which nose cone is correct both in appearance for judging and functionality for driving?
thank you,
bigredbrad
#5
Burning Brakes
Thread Starter
My engine block has a third threaded hole that looks like it would line up with a 3 hole nose cone. Just hate to buy a 3 hole starter to get numbers matching and find out that it is not correct.
bigredbrad
bigredbrad
#6
Safety Car
My 69 L36 also has the 3 threaded block holes but the stock starter is the 2 hole offset bolt pattern.
#7
Le Mans Master
I know that GM used one flywheel that is smaller and it used the two hole starter that had the holes straight across from each other used on 6 cylinder engines . But all of the corvette small block engines that I have seen take the two hole diagonal pattern . Not familiar with the big blocks though .
#8
I just replaced the starter on my 69 427 4-speed with a rebuilt correct one from Zip. There are 3 mounting holes on the engine, but only 2 on the starter, and they are on a diagonal. All works fine now, but it's a hell of a difficult job if you don't have a lift. Also, take photos of the wiring before you take out the original one.