Thanks Ken, I may just do that. I will paint it gold, already have a homemade dual snorkel that looks factory with a Rocket 350 decal, chrome filter top with decal and the solid black with decal. I also need new grills, need to decide between "S" and 442 grills. A W31 Emblem might be exactly what it needs.I love those 403s bores, not much valve shrouding there! I would use everything plus the #6 heads on the 403. Put it in the 1970 with W31 emblems.
Yeah, it certainly can't hurt sealing. I may do the same on my motor. How do those Felpro head gaskets fit with the .040" overbore? I believe someone claimed they measured 4.380".
Really? I would think Copper Coat would help this from happening as well. I used Corteco gaskets last time they took multiple overheatings and still held up, using #8 heads. I did have one Corteco blow on my 76 350 using 307 5A heads without head bolt reducing bushings. It could have been movement or over torquing the knock sensor for the TBI Z71.'Im using the Cometics on mine
I was told by BTR never use the FelPro's with the 403's
They will wind up squishing into the cylinder
That should be close enough to the 4.390" bore my pistons need. I have one new one, I will try and take a measurement on it. It almost identical to the used Corteco's 403 bore. I won't step up to the Cometic head gaskets unless I put aluminum heads on this motor.