My 66 442
April 15th, 2015 | 11:52 AM
#41
Registered User
Joined: Sep 2013
Posts: 3,639
April 15th, 2015 | 04:47 PM
#43
Thread Starter
Registered User
Joined: Jan 2011
Posts: 253
From: Machesney Park, IL.
I am running Weld Racing Street Stars. They are 15" x 5.5" in the front and 15" x 10" in the rear with 5" back spacing. The tires I have now are 205/75/15's in the front and 275/60/15 Mickey Thompson Drag Radials in the back. Right now I ran this set up with my stock rear axles with no issues. Right now I am running a Ford nine inch that is an inch narrower than stock with no issues. It tucks the wheels in just a little.
Rob
April 15th, 2015 | 05:19 PM
#44
Registered User
Joined: Apr 2012
Posts: 2,972
From: New Mexico
Randy
I am running Weld Racing Street Stars. They are 15" x 5.5" in the front and 15" x 10" in the rear with 5" back spacing. The tires I have now are 205/75/15's in the front and 275/60/15 Mickey Thompson Drag Radials in the back. Right now I ran this set up with my stock rear axles with no issues. Right now I am running a Ford nine inch that is an inch narrower than stock with no issues. It tucks the wheels in just a little.
Rob
I am running Weld Racing Street Stars. They are 15" x 5.5" in the front and 15" x 10" in the rear with 5" back spacing. The tires I have now are 205/75/15's in the front and 275/60/15 Mickey Thompson Drag Radials in the back. Right now I ran this set up with my stock rear axles with no issues. Right now I am running a Ford nine inch that is an inch narrower than stock with no issues. It tucks the wheels in just a little.
Rob
April 15th, 2015 | 06:55 PM
#45
Registered User
Joined: May 2011
Posts: 3,688
From: Delta BC Canada
Pics please
Please start a thread on your V code 73 442!
May 24th, 2015 | 02:28 PM
#49
Tony
Joined: Mar 2011
Posts: 450
From: wisconsin
We ran with Rob last summer for part of the power tour talked to him this morn hes got it going again was considering going with him this time but made a commitment to help run a shop close to home same weekend. We plan on hooking up sometime this summer and do our own cruz somewere. You will have a good time with Rob hes a good guy.
February 19th, 2016 | 07:02 AM
#51
Registered User
Joined: Apr 2014
Posts: 122
From: Winnipeg
Viscostity Breakown
I know I'm very late chiming in on this but, better late than never. I've been working on race vehicles and Oldsmobile's for almost 40 years. I'm not sure of others here but IMHO, 10w-40 is good for stock street 442 builds and similar engines of that Hp. With all the rebuilds you've done Rob I think I can safely say that your experiencing viscosity breakdown. With the size of the Olds journals it doesn't take long for the oil to overheat and breakdown, I've seen it happen in 5-6 seconds no BS. I run 10w-40 in the summer on low compression engines that might see some light-to-light abuse. Throw high compression, nitrous, or drag racing in the mix and I run 20w-50, after just 1 pass it looks like 10w-30, after back-to-back runs it looks like 5w-20. Also IMO Oldsmobile's need high-pressure, high-volume oil pumps. 
Ray
Ray
