[droppedbass87]

ok took the 4.6 i have gottent from a friend of mine for 200 bucks..it came out his f150..anyways took the valve covers off and one of the rockers was sitting there on the side of the heads..so we have figured out what was wrong with it lol..ive got everything off except the heads rest the way off and taking the oill pan,and taking the pistons and rods and crankshaft out..then when i get everything off im going to throw it in our hot steam machine that we wash our transmissions in..going to get it to look brand new..then ordering my forged rods pistons..compression is going to be at 9,3.1 or in that area...and boost cams...i just dont know what heads to get..should i just get mine ported and polished??the ones that are on my car right now??

[caintcatchmyGT]

Go with PI heads ind Intake. They allow so much more flow and add a great deal of power. Before you put them on you can get them ported and polished and upgrade the cams in it as well. thats what i am in the middle of doing!

[beheivjer]

P&P the npi heads and youll get better flow than the pi heads but use pi cams and intake keeps the compression the same but still gives you the powre you are looking for.

[caintcatchmyGT]

So you are saying that non PI heads P&P will flow better then PI heads? that could be understandable, but if you P&P the PI heads you are gona flow way better and it will be a huge gain!

[beheivjer]

it hurts compression using the pi heads

[droppedbass87]

well im getting boost cams..why do yal say keep my pi cams...and i have both non pi and pi heads and cams and intake..

[G.T. Rags]

dropped motor is PI

he's order ing parts to lower the compression anyway so it wouldn't even matter

[beheivjer]

96-01 4.6 truck motors are nPI so if he orders parts for that engine to get the 9.3 whatever compression throwing PI heads would lower it even further hes not goint to want 7.9 or 8.0-1 compression that would be good if he was running 30 lbs of boost but not 15.

[droppedbass87]

ok so what do i need to do then??port the non pi heads that are off the f150 motor??

[beheivjer]

thats what i would do seems you are getting cams anyway fopr your project that would keep it streetable

[MustangMatt96GT]

no putting PI heads on a NPI block will raise the compression! duh

anyway what I say you do is get some NPI blower/ turbo cams and PI or better intake with the boost you will gain some up to 30 HP, and then just port and polish the NPIs.

[droppedbass87]

ok yeah this is going to be around 350 horses i hope just motor..then supercharger will get me over 500...maybe close to 600..i really wish i could afford twin turbo..

[MustangMatt96GT]

I doubt you will see 350 horsepower just out of the motor!

[droppedbass87]

why not..i know the torque will be up in the 360s..has to be..

[MustangMatt96GT]

not with out a compression ratio of at least 11.0:1. I mean I highly doubt you will see 315 RWHP and 315 RWTQ Again these motors dont breath air and thats why the forced induction works well on them!

[beheivjer]

they are turds they suck but i still have fun driving it to work everyday

[droppedbass87]

ok well when i pull my engine and get my project finished should i put a tubular k member or no??

[MustangMatt96GT]

I say yes, it will lighten the front end in turn giving you better 60's and ETs

[droppedbass87]

ok good...

[droppedbass87]

ok guys i got everything up to this point..im getting ported and polished pi heads...gettig vt or crane boost cams..keeping my crankshaft cuz i never heard of anything happende to em..i just need to know what rockers, springs,and forge pistons,rods to get???some one please help..