Posted by Kaegi [76.22.23.236] on Saturday, November 14, 2015 at 12:11:11 :
In Reply to: Re: 318 Poly Find posted by Dave Horvath [73.154.113.3] on Thursday, November 12, 2015 at 21:58:46 :
the premium exhaust manifolds are more heavy duty than the 318-1 engines. you can see the reinforcement rib running the length. I believe they might be thicker as well