351W question about H/C/I
 

i run a carbed 351 windsor with a aluminum edelbrock performer intake, what would be the best cam(lift also?) and heads to go with to make way more power. do i need aluminum heads? is there a max amount of lift i can put in, because the rest of the engine is stock. if i use aluminum heads alos will i have to change pistons or gas or anything because dont u loose compression with aluminum heads? (correct me if i am wrong). and basically can i do h/c/i with out needing too many supporting mods. -thanks. smokejump:

well thats a vague question but if i were you and on a tight budget i would hunt for a set of pre 71' 351 heads port them out maybe freshin them up alittle then find a cam thats not overbored for your set up. contact these guys for pushrod motor cams these guys are gospel ive seen the results http://www.schneidercams.com/ rockon:

k, can i just port my 1972 351w heads? would a .500 lift be too much

thumb: hmm not sure about 72 heads but 500 lift doesnt sound unreasonablethumb:

ok cool, and also i dont want to waste alot of money on a good porting job if it doesnt do anything to the old iron heads.................but ya looks like i am saving for a cam after i buy rims, or do i need anything else with a bigger cam?

put the GT 40's on your 351! thumb:

who says porting iron heads isnt worth doing? ive got a set over bored to fit chevy stainless 2.02 and 1.60 valves ported to hell and 3/8 rocker studs full harland sharp roller rockers and plained 100 thou those are a set of 1969 model DOOE heads TRUST me this engine was f#cking insane balanced blue printed

yeah, it was kind of un sure on porting iron heads..because other forums said not too it wont do anything.......but my dad has a mostly stock engine in his 1976 dodge duster and he has his stock 906 iron heads ported like crazy...costed over 1 grand and he runs 11's in the 1/4

just posting to see if my computer still work b/c it messed hard core srry

Flavor flave said it best with "you goooooo boooy!"rockon:

good ported irons, are good ported irons. out of the box aluminums are out of the box aluminums. two different beasts entirely. if you just want to buy a set of out of the box good preforming heads that will leave you room to go and save you a ton of weight, then the aluminum is the way to go. if you just want that little bit of extra performance, want to save a few bucks, and don't plan on much down the road then porting is a good route. i've seen out of the box bolt on AFR 165s completely transform an otherwise stock 5.0, but you spend for it too...
the fact that they are made of aluminum is not going to change your compression ratio, the shape and size of the combustion chamber does that. with either ported or aftermarket heads you'll want to make sure your fuel and ignition systems are up to handling the increased air flow.

cool thanks for that info......lets say i am running around 13 flat with my 351w if i just get a bigger cam (sumtinn round .500 lift) and port the stock 1972 iron heads could i see 11's in the 14? with good suspension?

^That's possible if the cam is designed properly for the engine, a good port job is expensive but worth it and much cheaper than alum. heads. I agree with what Scones said above and if it was me, I'd port the stockers cuz' I'm cheap and I prefer the cast heads for durability and resistance to warpage. You will be best off to call Comp cams or a similar cam company and tell them your exact setup inluding engine model and year, compression, type of pistons, etc.....they will design a cam to get the most power from what you already have, and it's not as expensive as you think. If you port the stock heads, don't forget to port match the intake and headers as well as you'll find there's quite a difference with port-matched parts and it will help you get to your power goal.rockon:

would this all cost...oh um maybe like under 1k? or not

arnt cams like 500 bucks now?

lets say your running 15's and lets call high 13's your goal without alotta $$$$$

huh??????????????

A good custom-grind cam would probably be close to $500, the head porting can be done for close to that, maybe a little more, shop around or start a thread asking if anyone knows porters in your area, I know someone who does them near Toronto, but that's a little far from you it.

100% agree goodpost:

i know i guy that can port really good.....he owns a 10 second falcon last year he gave me ported gt-40 heads with apr bolt FOR FREE!!!rockon:

i don't see why 11 wouldn't be possible with a Tmoss quality intake, and thumper quality heads in a light car with good suspension

When will you guy's realize that lift has very little to do with weather or not the cam will fit?it's all about duration you will need to check piston to valve clerance no matter what

If you allready got a free set GT40s why not use them???