ok as u all know i have been wanting to raise my compression but i keep hearing this other side from someone else. first off they say i need to get aftermarket heads to even think about this if so y? several of you all on here said if i just get them milled it will raise the compression if i do this is there any side effect such as PTV problems? is a higher compression car streetable? and fill me on nething else i should know all suggestions are appreciated

 

You can bump the compression on the stock E7's no problem by having them milled. However, if you're going to bother why not throw a set of GT40 heads on and the Cobra intake. (I have both if you need them)

Especially if you have the heads ported and a valve job done. You're probably looking at another 50-75 hp if you have them done right.

 

new short block that is balanced with a good set of forged pistons. keep it under 10.5/1 and you should be ok with 93. then you will have a good strong bottom end.

 

well i am ordering valve springs, double roller timing chain, and prolly a trick flow intake. i also have roller rockers and a cam that i will be putting in soon thats why i am asking about have having my heads milled to bump the compression to at least 10 and i was also wanting to have them ported while i was at how much of a gain in horse power do u think i can expect? i was hoping for at least 30-40 with everything being conservative. is this a good guesS?

 

With the cam, intake, and the rest if the stuff...I'd say you were on target to make 40 hp more, but you're killing yourself with the E7's. Those are really going to hold you back.

 

but like i said if i want to get them ported and milled just to get a few extra ponies out of it before i can start working on my real motor thats going to be in the car one day which is a 351w. does neone have a idea how much it would cost to get it ported and milled?

 

You're probably looking at $300-400 for a good port and valve job on top of having them milled. It's almost not worth it. Watch eBay and see if you can find a set of used Trick Flows for $500-600.
Then you can use them on your 351. (I think)

 

if it cost that much i wouldn't even bother with it. i talked to a guy around here and he said it would cost about 22 dollars a head to have it milled and then he wasn't sure about have them ported i appreciate all the help

 

why not just buy a set of P heads for a few 100.00 of buy a set of heads that you can transfer to the new block

 

well i was trying to get quiks but he sold them which sucks for me what kinda cars can i get them off again? explorers?