• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

440 source heads.

Russ69Runner

Well-Known Member
Joined
Aug 4, 2016
Messages
7,787
Reaction score
3,331
Location
Lake Wales Fl.
Has anyone put a set of these heads on a 383. Directions state after installation fire up the motor and bring to running temp then let it cool down and retorque the heads. This is a bummer, but I guess it is what it is. More work :mad:. If you have these heads, how do they work for you. Thanks Russ.
 

6PKRTSE

Well-Known Member
Joined
Oct 1, 2018
Messages
281
Reaction score
317
Location
Motor City
I installed a pair on one of my buddies mild build 400/451 stroker. After cam break in and several heat cycles we re-torqued them. He now has thousands of miles and several years on them with no issues.
 

Russ69Runner

Well-Known Member
Joined
Aug 4, 2016
Messages
7,787
Reaction score
3,331
Location
Lake Wales Fl.
Thanks for the reply. I know it was relay hard to get those 906 heads off. But the new aluminum ones where a lot better to handle weight wise. I will try to keep everyone up to date on how they work for me. :thumbsup2:
 

6PKRTSE

Well-Known Member
Joined
Oct 1, 2018
Messages
281
Reaction score
317
Location
Motor City
Of course I probably should have added that we went through them entirely before just bolting them on. Never trust anything right out of the box.
 
Back
Top