403 Oldsmobile

Jim Kaekel · 01-20-2020, 04:32 PM

Add a couple of others- Mike Mayhew ran a '77 Cutlass with a 403 a few years back and Mike Moyer ran a Olds 403-powered Firebird as well.

Bunkster · 01-24-2020, 11:36 AM

In the eighties, there were scads of 307 cars being beat to death all over the country. Those were windowed too.

They held up well. They weren't nearly as fragile as some thought.

Jeff Stout · 01-24-2020, 12:17 PM

Quote:

Originally Posted by Bunkster

In the eighties, there were scads of 307 cars being beat to death all over the country. Those were windowed too.

They held up well. They weren't nearly as fragile as some thought.

Im running a 307 window right now. Im only a little nervous as Im not making big power , but in the beginning I was crossing finish line at 7000 and was waiting for kaboom. Now things are more inline and rpm's are at 6300. I feel allot better now. Oil looks great and pressure is still the same.

01-20-2020, 04:32 PM	#1
Jim Kaekel VIP Member Join Date: Jul 2002 Location: Michigan Posts: 1,227 Likes: 133 Liked 531 Times in 108 Posts	Re: 403 Oldsmobile Add a couple of others- Mike Mayhew ran a '77 Cutlass with a 403 a few years back and Mike Moyer ran a Olds 403-powered Firebird as well. __________________ Jim Kaekel 3836 STK

01-24-2020, 11:36 AM	#2
Bunkster Member Join Date: Aug 2002 Posts: 307 Likes: 0 Liked 43 Times in 10 Posts	Re: 403 Oldsmobile In the eighties, there were scads of 307 cars being beat to death all over the country. Those were windowed too. They held up well. They weren't nearly as fragile as some thought.