Instructions For head porting

[whiteThunder]

I am about to drop my heads, block, upper and lower intakes off to a reputable machine shop for boring, porting and polishing, and wanted to knwo if i should tell them anything special, i was asking for a 5 angle valve job, and to reduce the fins in the heads, but not remove them . Also i am going to ask them to grind back the oil return vanes so that oil gets back quicker. anythign else. i printed off super six's specs, and i want them to match if not make better. Can anyone think on anything else to tell them. will they have to grind for my 1.6 rockers??? what about valves?

[WickEdSix9838]

If you're taking them to a shop and are worried about them knowing how to port, i'd question how good they were.

[T-Punk]

how much are you planning on spending? it would probably be cheaper to get some abbott or ssm heads (the abbotts seem to put out better #'s though) and also have better peace of mind. the 1.6 rockers are the stock ratio so there shouldnt be any clearance problems.

[whiteThunder]

well actually, 1.6 isn't the stock ratio, it is 1.5 i trust the head porting place, just want the absolute most out of my heads, and don't want them to do an ok job on them, i want a great job

[whiteThunder]

btw, they are charging me 500 for heads, and lower + upper intake

[OneQuickV6]

Again, if you question how good they'll be, take them elsewhere! Buy aftermarket from Abbott, they make great power, and are only a little more money.

[ February 08, 2005, 08:28 PM: Message edited by: OneQuickV6 ]

[WickEdSix9838]

Originally posted by whiteThunder:
well actually, 1.6 isn't the stock ratio, it is 1.5 i trust the head porting place, just want the absolute most out of my heads, and don't want them to do an ok job on them, i want a great job

Just remember, you get what you pay for. $500 is VERY cheap for having the heads and intake done.

[oil pan 4]

I think that is a lot.
It is an ok deal, you should go for it.

[pgriffith]

I wouldnt trust anyone with my 3.8 heads unless they do it every day. Theres not alot of shops with 3.8 head porting experience. I would suggest going with Abbott i havent used them but i keep reading great things about there head work and prices. And they do it every day so it will be a better port job then your local machine shop.

[Jeanda]

how far in from the matting surface should they bore-out?