I thought i did this last night but i cant find the post so i guess i hit the wrong button.


Ok I have a 351c with the 2v heads. I plan on pulling the engine and will be getting it bored and all the good stuff. It will be going in a 69 Mustang I would like a noticeable idol nothing too crazy. I would like 330-350 HP at the wheels you know I need more than my buddies 70 split bumpers 328HP at the wheels. The car will have a AOD transmission. Could I get some suggestion on the build?

This is my current parts
Edlebrock RPM Air Gap Intake to fit 2v heads
670 Street Avenger Carb

I was thinking of going with one of these cams. These arn't roller i wouldnt be opposed to going roller.
Isky – 270 Mega Hydraulic - 221 @ 50 540 lift
Lunati – 07111LK - 225 @ 50 550 lift

I think I would want some aftermarket heads not sure which ones some advice would be great. You know soemthing that will give me a bang for the buck. I know of the AFD, Pro Comps, Edelbrocks, and the CHI heads for thecleveland are there any others?

Let me know what else I am forgetting I am sure there is. You know what piston should I go with is there a kit stuff like that. I am sure someone here has build a clevleand befor what did you do and what would you do different now that you are finished.

Befor you say it, i know i will have to upgrade suspension, i already have front disc brakes and a for 9" rear end.

Man i really remember dooing this already but i did a search of my name and couldnt find it so let me know what will get me where i want to be.

thanks


Thanks

 

Look for Aussie heads. They have a closed chamber, but the 4 valve style runners. Or, port and polish the heads you have now. The intake is good, so keep it. If you want a lot of power easily, talk to Eagle about a stroker kit for the cleveland. They can send you everything you need to built it up to a 393, as well as a few other CIDs. This will give you insane power right away. Those cams have the lift you need, but not the duration. I would look for something with about a 240 @ .050 duration. I would def reccomend getting a roller cam, but you would need to get one custom ground from comp. Just call them to see what they reccomend. You would probably need like a 750 carb, Id say go witha Mighty Demon, mechanical secondary. Ignition will need to be upgraded as well. A good coil such as an MSD or Mallory and an ignition box will be in order.Also, to get that much RWHP, you are going to need one hell of an AOD. I would suggest just staying away from that and getting a well built C6. The AOD is a much weaker unit. Granted, it does have overdrive, but when it breaks, it wont matter if it has 3,4, or 10 gears b/c you wont be going anywhere anyway.

 

I see what happend to my origional post the site went crazy.

I do have MSD ignition already frogot to metion that.

I am not oppose to alumn. after market heads if the aussies are better i would be willing to go that way. Didnt think about the iron aussie heads and working them. Bare aussie heads $390 http://www.ausfordparts.com/ausheads.html and about what $300-$500 to get them worked on just a guess. Would that be better than going alumn?? Any other thoughts out there.

 

Just depends, you can work the aussie heads, but it will probably end up being in the $600 range. So, for less than 1000 bucks, you've got killer heads. The ONLY advantages of the aluminum is that you can run a slightly higher compression on pump gas (up to about 10.5:1 or so), and they weigh a lot less.Im not sure what the intake runner sizes are for the aluminum heads, but I would say that the ported Aussies would do just fine for you. It really all depends on your budget, if you have plenty of money to spend, go with the Aluminum, if you are on a tight budget, then go with the ported Aussies. Performance will be about the same with either set up (unless the aluminums have the 2 valve size runners, in which case the Aussies would definately be the way to go).

 

im sorry tyler but while the aussie heads are great, they will not perform as well as CHI or Edelbrocks........ ark, your trying for about 400 @ the flywheel from what i gather, and i believe even with your stock 2v heads thats a goal you could reach pretty easy with some port work, pistons that put you in the 10:1 compression range, a healthy cam, roller rockers, longtube headers, your intake and your carb (which i would stick with by the way).

 

Well, correct me if I am wrong (which I may indeed be), but aren't the Edelbrock's runners smaller than the Aussie Heads'? Im not sure about this though. I have heard of the CHIs, but never really looked into them since I dont have a Cleveland. I have heard they are really nice. It really all depends. Like you even said, the Aussie heads are great, and he should be able to reach 400-425 HP pretty easily, even if he doesn't stroke it. And this route would be cheaper than aluminum heads.

 

the aussies have the smaller 2v ports and the smaller chambers of the 4v heads to keep compression up. that is why they are the best of the stock casting heads - though i personally like the HUGE ports on the 4v heads (with some port work to improve their flow) because you can use them on a 400+ ci motor and they will be right at home.

CHI heads are amazing, and you need to keep in mind that port SHAPE and DESIGN is more important that port SIZE.

 

I keep telling everyone they need better heads. CHI 3V heads, a custom grind roller, CHI's intake(or an RPM Air Gap that's massaged to work with those heads), some Mahle pistons with around 9.5-10.5:1 compression and the supporting boltons is a 400+rwhp combo that will run on pump fuel every day and last 250,000+mi if it's maintained well. Heads will absolutely make or break an engine. Though the stock Cleve heads can do ok in some cases, they're hobbled by an overly large port that's of poor design, and the chambers aren't all that great either. They're just old technolgy, and we've learned a LOT in the last 30 years(hell, we've learned a lot in the last 10). They may be the highest flowing stock SBF heads out there, but they'll just get absolutely blown out of the water by a better head, that flows more with a smaller port(which means MUCH higher velocity) and a much better port design(better swirl, tumble etc) and a much better chamber design(though think CHI's heads still have a rudimentary chamber design that could do with some updating). A good set of heads is money well spent.

 

^ he has a point[8D]

there is something about using stock parts to make power that is sexy to me though. like, the same heads could be stock and make 300 hp on a motor thats warmed over or they could be ported with big valves, stiff springs, etc, etc and be making 350 hp on the same motor - but when you pop the hood its just stock lookin ya know?

 

Robert Yates (Nascar fame)
Makes some serious HP from his Cleveland heads.