harmonic balancer question 427
Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,369
Likes: 12
From: wichita kansas
harmonic balancer question 427
i'm in the process of "re-creating" a 427/390hp for my 68' coupe. i have heard conflicting opinions.......which balancer would be correct for this engine, the 7" or 8"? thanks for any assistance you may offer. rick
Drifting
Joined: Feb 2005
Posts: 1,879
Likes: 38
From: Los Gatos CA
I have a 68 L36 Roadster. The 7 inch is correct. I had mine rebuilt at Damper Doc. I used an 8 inch temporarily. The clearance to the cross member is pretty close. And remember to get the timing cover with the welded on timing tab. I was stupid and broke mine off when I used the 8 inch...
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Standard 427 got the 7" balancer. High performance engines use an 8". Same as the small blocks. A lumpier cam needs a bigger, heavier balancer in a street application. Your engine requires a 7" neutral balance balancer. I think I got one in the garage.
Last edited by 63mako; Nov 2, 2008 at 07:46 AM.
