Okay, so admittedly I'm a rookie when it comes to head selection. Admittedly, my car used to have a "great" set of the ProComp trash heads on it... Car is being built as a dedicated track-star, with the occasional Saturday Night in mind

Here is what my combo is:

• '95 Cobra Block .030 over (306ci)
• DSS ProLite Pistons (Dished w/5cc valve relief for stock length pushrods)
• Comp Cams XFI Nitrous Cam (.579 lift)
• Nitrous Works Plate System (probably go with 175-200 shot)
• Edlebrock Victor Jr. Carb Intake
• Built C4 with a very large stall (4800-5000)

I'm in need of Heads, Carb, and a few other last items to put the car together - but wanted to get some SOLID input to see what is the ideal recommendation for my setup... So please, introduce me to some knowledge on the topic


Been kicking back and forth the idea of Edelbrock Victor Jr's - box stock, or some worked Edelbrock RPM Performers

Thanks,
-Jo$h

 

Canfield heads are quality.

.02

 

PM'd you about them - didn't have any knowledge on them; googled and found:



Sounds identical to my combo, damn-near; as I have the Vic Jr intake (ported) and a 306, with lower compression, and a .579 lift camshaft.....

Question is, which CC size is ideal? ::::

Canfield Cylinder Heads

 

Vr's here because of the deal I got them for. IMO the 2.05's are BIG for a 306. I was gonna buy some AFR 185's if I had to order some.
I didntt wanna have to spray it all the time to make some powa. With the 2.05's, dont think I'll have much choice. Its gonna be a pig on the motor for now.

 

Canfields are excellent..... I really like AFR's but they are definately pricey..... and TFS High Ports have always been 1 of the best out there.....

 

AFR 185's

Just my .02 if I had any.

 

Comp Cams Part number 35-775-8 Cam Grind Number XFI1236HR-14


Josh most after market heads come with around a 64cc chamber, Do you know what size cc dish your piston is. Not the cc of the valve relief, but the cc of the dish. I knew this was Adam's old motor but I don't think I knew he had a "dish" piston.

Again if your going to do a blow through set up some time down the road. I would try to find the heads that would work best for it, rather then what would work best for you now. It will save you time and money down the road.

If you don't plan on doing the blow through set up for a while. Then I would try to keep the compression up. If you were going to do the blow though obviously you would need less compression. Plus that camshaft really wouldn't be ideal for a blow though setup. Something like that I would have custom ground.

Are you sure that stall is that big?? So if that is a 5000 stall and your cam makes power from 2600-6300...... I don't think that is matched well at all.

but for the question here at hand, I think an AFR 185 would be a bad ass head for your setup. It may be on the tad big side but nothing the spray won't make up for. I had awesome luck with my AFR's. You can't go wrong with them thats for sure!!

Keep an open mind and just look to see whats out there. With the internets, there is always someone stepping up and wanting to get rid of their old setup.

 

Thanks Shaun; definitely been considering the issue(s) with the Cam and the Stall. All I have to go on is what was "told to me" - unfortunately. And at this point, how credible is/was the source(s)?

Ideally, I would like to put the car together - NOW - so I can either fall back in love with owning a performance car - or decide I hate it and sell the fucker. With that in mind, my *ultimate* goal is to have a streetable blow-thru turbo car - end of story. Turbo > all, IMO.

/\ that is why I had been thinking a Vic Jr would be the way to go now, even if it was a pig on motor - it would be ah-okay-ish on the spray, and would definitely be the right head for when I turbo the car.

I guess I won't really know what's up with the stall until I get the car running/driving anyways But the cam that is in the motor is an EFI Nitrous cam... And now reading your excerpts from their site; looks like its for larger displacement motors to boot...

 

I had box stock AFR 185s on my old 347. It made good power.

It's all relative as to how deep your pockets are son!


If those cam specs are correct, It seems that some of the stuff you're using is a bit mismstched. Look at your end goal, try to buy parts once. Spray now and boost later...you have to make these decisions before you buy heads or a cam, now.
Runner size, combustion chamber size, valve size....lots to decide on.

 

"Nitrous Cam" kinda vague huh?