buget94gt

has anyone heard of brazzing the intake port like makeing a little ramp for the air to increase volosity. amachineshop told me this. they sayed the used to do it on 289 heads on a 302. i waswondering if itwould work on my 351 heads for my 347.

mjr46

do whaaaaaaaaaaaaaaaa???? never heard of that one ..but then again I'm no machinist so the tricks of the trade may be hidden to me

buget94gt

yeah i thought the same thing but he sayed it worked very well. i just want to find out before i braze on my heads and possible jack them up.

MadMan@TheWheel

Okay....These guy's are actually talking about building up a possible projectile that could break free and wind up stuck in a valve or through a piston and calling it technology?

Basically what they are talking about is conceptually not a bad idea, the build-up will cause a pressure drop which will increase velocity.

However broken slag will punch holes in pistons, I say save up and buy a decent set of heads....And slap those yokels in the head on your way out of the shop.

butch86

I second what mad man said.. The only brassing or welding i would do on a cylinder head would be to fill in the thermoactor hole for emissions once you grind down the bump in the exhaust port. Thats only if you didnt have to worry about emissions.

I have used epoxy on heads before but they were not for street driven vehicles only weekend race cars.

my77stang

its old school racer stuff that really does work, but with the low cost of performance heads anymore its pretty much put the machines shops outta the business of working up stock castings. the only time its really worth it anymore is when youring needing to stick with a stock head like in a racing class.