04-3 IN / 07-3 EX Grind, Flathead Core

DynoCams will no longer be able to provide flathead cast cores for stock or hot stock grinds. These cast cores have not been produced by Briggs and Stratton for many years and there is no secondary supplier. We will, however, still grind stock profiles if you can provide a cast core meeting the following criteria:

• Cam journals free of rust, damage, or excessive wear

• Cam gear is free of rust, damage, or excessive wear

• The intake and exhaust base circles are no less than .725

Description

• This cam will produce more low end horsepower and maintains the same top end as the 7X. This cam is hard on the block so billet lifters and welding of the exhaust lifter bore is recommended. Excellent cam for all unrestricted classes.
• The lobes are hardened for extra durability, extending the life of this cam.

Specs