what heads do i want

NOSBigShot

NOSBigShot

Club Member
my bud has a stang with a357
car weight is2700
gear is 410
trans c-4 3500 stall/brake
com ratio-10:1
tires 28/10.5
kooks headers
super victor intake
need advice on cam and heads
 
185cc AFR with that comp., maybe a 205cc AFR...as for the cam, call Comp Cams and get one ground for the application..1-800-999-0853-what size carb?
 
as stated before give them a call and give them the same specs you gave us along with carb size and fuel system specs

I like the TFS high ports myself
 
If the bottom end can handle rpm in the 7500+ range I'd ge the 205's if its gunna be below 7k then the 185''s.. Unless he plans on building a bigger motor in the future.

As far as a cam, I mad mention of ed curtis when you were over I suggest him or jay allen if its a ford.. .Thats all they do is nmra shit they know sbf and how to make the right cam for what you got.
 
he has a 750 d.p carb.
175 shot nos
he wants to buy a bigger carb
would the afr 205cc help/hurt this combo?
 
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205 cc thats it and ur runnin a super victor come on. get a set of trick flow high ports and let the right people gets theirs hands on them and u will get the best bang for the dallar. and if he wants a bigger carb i hope he plans on spinnin that thing.......is this solid roller or hydraulic roller????? pump gas or race gas?????
 
1bad Lad said:
205 cc thats it and ur runnin a super victor come on. get a set of trick flow high ports and let the right people gets theirs hands on them and u will get the best bang for the dallar. and if he wants a bigger carb i hope he plans on spinnin that thing.......is this solid roller or hydraulic roller????? pump gas or race gas?????
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It is only 357 cubes w/ a 3500 stahl.....205cc's might be a lil' much for that...swap out the super vic. to a jr.
 
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I think a victor jr head would be a good choice.(great bang for the money) I used them when I had my 351 and have them on my current 410 and they seem to work pretty well for being out of the box. Car went 10.8x with the 351 and has gone 10.3x with the 410 with them n/a.
 
allthrottles10 said:
It is only 357 cubes w/ a 3500 stahl.....205cc's might be a lil' much for that...swap out the super vic. to a jr.
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dude look at an ls6/ls2 the 243 castings are 210 cc stock. and an ls6 is only 346 cid. my heads are 225cc on my 347 ls1, cam is 242/248 .620.620 114 and i have a 3400 converter with 3:23 gears in a 3700 pound car and i can cruise around in overdrive at 1300 rpm and the car desn't even buck or jump. and it makes power to 7000rpm. but i guess bein fuel injected prolly helps a little. :later: and if he already bought a super victor and wants a bigger carburator he's obviously lookin to make some power. and if he's ganna be spinnin it to 7500ish ganna be lookin at a pretty healthy camshaft. well i see that ur ganna run some nitrous so ur ganna want a camshaft with a bit wider lobe sep which works out good because that will widen ur power band a bit and will work with the 3500 converter and make power up to 7500ish. the vic jr heads are good for the money but ur gana get more out of some high ports.
 
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I know where there are some awesome deals on some CNC pro-toplines that are identical to a set that made damn good power on a 351 in a thunderbird :D :secret:
 
toplines would be agood choice for the money.....but make sure they are the dave k version and not the rick swain version......
 
i mean look at the mod 4valve engines....got them heads flowin in the 330's on less than 300 cid and them damn things run really well. i don't understand why anyone would wanna buy anything smaller than a 200 cc head...waste of money if u ask me...
 
Wow, some of these responses are funny.

It's quite simple as what you are doing here is very straight forward.

Decide on how much RPM you want to turn and choose the supporting components from there. If you plan on leaving it a small inch engine and not turning it past 6500 RPM or so, I would go with the 185's. If you plan on running it up to 6700-7500 I would go with the 205's. However, if you plan on running some RPM now, meaning, 7000 or so, and then later upping the cubes, I would put a 225 on it.

Oh, and by the way, get a REAL custom cam. Stay away from Comp, unless you want a shelf cam and they do have some that will make very good power, but their phone techs suck for doing custom cams. There are plenty of custom cam guys out there that can help you. There are some that are better to deal with than others.

The only reasons a large cc runner head would not work on a small inch engine, is either due to poor selection of supporting components or poor camshaft design.

A prime example is a buddy of mine has a 306 that has 240cc high ports on it and the little shit runs 9.60's all day long at 3000 lbs N/A. The key here is the RPM limit was decide upon prior to selecting anything else. So now he has a HUGE headed 306 that goes thru the traps at 9000+ RPM!! The point is the engine is going to move a certain volume of air based on cubic inch and rpm. If you select parts to support that volume it will make good power.
 
QuickLX said:
Wow, some of these responses are funny.

It's quite simple as what you are doing here is very straight forward.

Decide on how much RPM you want to turn and choose the supporting components from there. If you plan on leaving it a small inch engine and not turning it past 6500 RPM or so, I would go with the 185's. If you plan on running it up to 6700-7500 I would go with the 205's. However, if you plan on running some RPM now, meaning, 7000 or so, and then later upping the cubes, I would put a 225 on it.

Oh, and by the way, get a REAL custom cam. Stay away from Comp, unless you want a shelf cam and they do have some that will make very good power, but their phone techs suck for doing custom cams. There are plenty of custom cam guys out there that can help you. There are some that are better to deal with than others.

The only reasons a large cc runner head would not work on a small inch engine, is either due to poor selection of supporting components or poor camshaft design.

A prime example is a buddy of mine has a 306 that has 240cc high ports on it and the little shit runs 9.60's all day long at 3000 lbs N/A. The key here is the RPM limit was decide upon prior to selecting anything else. So now he has a HUGE headed 306 that goes thru the traps at 9000+ RPM!! The point is the engine is going to move a certain volume of air based on cubic inch and rpm. If you select parts to support that volume it will make good power.
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well said....finally someone has a clue whats goin on here.
 
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