I have on order a 56mm tb and an intake spacer from vap. im planning on having my mechanic p&p my upper and lower manis (since im gonna have to port mactch it for my tb anyway)...since im there anyway, would there be any gains in porting and polishing the heads, without upgrading the cam or the actual head components? (valve springs, etc)? just curious. i have a friend who works in a machine shop who i kind of do a little barter businessing with, and could give me a good price on any p&p work, so the labor wont really be a factor, too much, anyway.

thanks in advance!

 

I would just do the p/p on the intakes for now. When you can afford or want the cam then get the heads p/p. That way you won't have to worry about how the intake and exhaust flow is going to be changing. Not to mention that you will still have the stock cam. You could go to SSM and order one of their used cams. They have used performance cams for a decent price that would get you by until you could order a new one that is going to best fit your application.

What are you wanting to do to your car? I thought you wanted to do a split-port 4.2L? I wouldn't worry too much about p/p the single-port heads if you are going to be doing the split-port conversion. With the p/p intakes, throttle body and intake spacer you should definitely feel a nice gain, mix that with a full exhaust and you should have a much quicker car.

 

You should just do a split port swap~

 

thtas exactly what i thought about, since im going ahead and doing that anyway. ill search for the thread with all of the components i need for the swap...unless someone wants to be nice and list em here for me, heheh...im thinking, with the split port swap, ill probably open up the head and intakes a lil more before i put em on. i wonder, with the split port swap, if the windstar intake would work on the new head..

 

Yes, the windstar intake will work with the split-port swap. SSM has the complete split-port swap and so does CRT. They both come with everything that is needed for the swap. CRT is quite a bit cheaper though and he seems to be a pretty good guy. I have been exchanging PM's with him and he has been answering all of my questions.

I would recommend going with the splitport swap if you have the money and your engine doesn't have too many miles.

 

you dont want a PNP on a street car you just need a port if you polish it will be a smooth intake and its not good you need some turbulance in the air

and the only true way to pnp is if you have a flow bench

and you really arent doing anything because you are just opening the 2 areas and the runners inside diameter are going to be the same so their is no point in even doing it

 

Is it just me or is this post extremely confusing?[&:]

It is not worth it to P&P a street car... Why not? Most P&P for the V6's are all just gasket jobs anyway. They provide better flow and allow more air to come in. How is opening the inlet and outlet area's not good on the intakes?

 

nah, chris, john2k is wrong. i ported my stock intake manifold on my old turbo four banger, just opened up the inlet and outlet areas, and i defintiely felt a gain. im gonna check on prices for the whole split port swap...if it is really pricey, i may just go with my original idea, and port my stock manifolds for now, and leave the head stock. when i do my full engine build, ill do the split port swap, the windstar intake, stroke the motor, then boost it. oh yeah, then tune it so it doesnt blow up. :P

 

checked out the power packs from ssm, and while i like very much, im thinking im just gonna hold off till i do my full build, and just port the stockers a bit when i do my intake spacer and 56mm tb. will let all know how it turns out. thanks vcs and chris.

 

SSM offers the entire split-port swap for ~$800~, CRT offer's the same thing for ~$500~. Even paying for the extra stuff like you have to pay for on SSM it is still cheaper to go with CRT. His link is in the post that VCS just made up about all of the different stages of bolt-ons under the Split-port swap. He even offers the Split-port with the Windstar if you wanted to do that.