Bulldog Cylinder Heads?

[robinsonwr]

Has anyone run these heads on their combination before?

 

[67 B-body]

never heard of them... Are they supposed to be a good deal?

 

[Budnicks]

Are those the "Chinese? Pro-Comp pieces?...

 

[Nsane]

Let me guess you saw them at 440 source on the bargin page.

 

[Budnicks]

Let me guess you saw them at 440 source on the bargin page.

I don't think 440source, would even sell those... If it's the ProComp Electronics version cheap Chinese crap... I could be wrong

 

[Nsane]

They have a set that was on a motor they bought and are for sale for $1500 in the bargin section. they claim they are very desirable heads. there's are ported though.

 

[67 B-body]

I don't think 440source, would even sell those... If it's the ProComp Electronics version cheap Chinese crap... I could be wrong

Say what you want about ProComp 440 heads. I have a set and I can personaly say that they look and function GREAT! Please only speek about any products if you have personal experiance with it. Lots of people read these posts, and I can't stand it when car enthusiast's on a buget are steered away from a product that he or she can afford Unnecessarily!
I know there are others on this site that use the ProComp head as well, with nothing but great success.
BTW,,, in another post, I read where someone was told by an Edelbrock rep that he should probably lap his valves in on a new set of heads.... Does this mean that none of us should buy them too??? Just saying.....
My 2 cents....

 

[sicksatellite]

Hughes engines sells them too

 

[SUPERSTOCKRACER]

bulldog if im not mistaken are out of business. the castings were very thin and you can blow thru the ports very easily if ported a little on the heavy side. id pass on them imo.

 

[4406brl]

What do you want to know? I have been running a set for 4 years no problems.

A little history. The guy who did head drawings for indy went out on his own to make them I heard that they pushed him out of the head casting buss. pretty quickly. They came out before the EZ's did. First batch was piss this in spots. third batch is what I have and I like them. Porter cleaned them up and mine flow 308 at .550 with standard port size.

 

[valiantwagon]

I have a pair I would sell cheap. One has been repaired, still has a leak. Would be great if you needed a spare or have 1 bad head.

 

[Budnicks]

Say what you want about ProComp 440 heads. I have a set and I can personaly say that they look and function GREAT! Please only speek about any products if you have personal experiance with it. Lots of people read these posts, and I can't stand it when car enthusiast's on a buget are steered away from a product that he or she can afford Unnecessarily!
I know there are others on this site that use the ProComp head as well, with nothing but great success.
BTW,,, in another post, I read where someone was told by an Edelbrock rep that he should probably lap his valves in on a new set of heads.... Does this mean that none of us should buy them too??? Just saying.....
My 2 cents....

Good for you, I'm glad you haven't had any issues with your ProComp heads... I'm sure there are other people that will sware by them also... My point is there made of lesser quality & you get what you pay for in the long run, you want cheap made parts, buy them it's really your choice... I have run many different brands of aluminum heads on many different make of engines in my 35+ years of racing & know many other people that run many different brands of aluminum heads & the casting thicknesses & quality, deck thickness, consistent thickness in combustion chambers & ports, consistent combustion chamber volumes, higher cfm flow capability & better port configuration, better machine work, angled plugs for better flame travel, blind heli-coiled bolt holes, better quality parts including springs, valves, retainers & locks on the Eddy RPM & Victor, any Indy head & Brodix are far superior to the Stealth & ProComps out of the box... You can spend a bunch of extra money to make the cheaper versions close to be comparable to the other 3 I listed, but why you could have already had a better quality casting & have superior quality American Made product to begin with, for about the same amount of money you end up spending on the cheaper versions to try to make them comparable... I just prefer to by American when ever possible & use the better castings of the 3 that I had mentioned.. It's really your choice if you wish to by the cheap heads... Any part you purchase should be checked for flaws, proper parts, fit & assembly period... It's cheap insurance for any performance build, whether it's from Pro Comp or any other supplier cheap or not!!! I don't like having to spend my hard earned money several time when I can have a quality product the 1st time for just a few dollars more in the long run... That's my 2 cents...

 

[67 B-body]

Ill use your reply as a sort of checklist if you will.
Procomp thick casting ... check
Thick deck surface.... double check
good stainless undercut valves..... check. " just ask how I know"
volume consistancy...... check
chromoly retainers...... check
10 degree valve locks..... check
bronze valve guide..... check
heart shaped combustion chambers....check
angled plugs......check

Maybe I got lucky and had a good set made..... Maybe they're all this way? I don't really know but mine are as described.
as far as getting what you pay for,,, sure..... but I don't think it has to be as much as the other name brands charge and folks who are just willing to pay it without reservation help keep prices higher. Fair marketing helps keep prices in check and further more, allows some of us folks without deep pockets to play along. Its a matter of affordability and my heads specifically allow me to do this. I know they are much better than a set of factory cast iron heads with everything possibly done to them. This is why they can and should be considered a viable option. As stated, its always a good idea to inspect any manufactures product prior to use. This holds true for the procomp heads, but should not exclude them from the list of choice and should not be held against them solely.
I should also mention, that when other brand heads are ordered, alot of them come as 1,500 dollar bare castings!!! that deserves repeating BARE CASTINGS!
You are still taking the "GOOD" brand into the local machine shop and having the works done to them!
Does anyone see a pattern developing here?
I will be the last person to say they are perfect, and I would not argue that there can and probably are better designs somewhere, but these ar a copy of the Edelbrock Victor head, and if that head is of interest to you, I suggest you stop and look at the Procomp first.... You'll save lots of money compared...
I put a couple Manley valves in mine after a piston strike due to failed camshaft. The only damage to the head was two bent valves,,,, Not broken, cracked,,, BENT! If they were junk garbage as some wold lead you to believe, I would have expected them to snap in half... The seats even held up...

my 2 more cents... now im up to four!! Lol!

 

[Budnicks]

I guess we can agree to disagree... my 2 cents more now were even at 4...

 

[smokinwoody]

I'm a little late seeing this post..

I have Bulldog heads on my 499....we make big power from these and the right cam selection...

no they are NOT Chinese..made in good old USA, Indiana...

I forgot the guy's name that owns Bulldog, Richards I think...at one time he helped design the Indy heads when he worked for them..they have 2.19 intakes and 1.81 exhaust..

we milled .075 off to achieve a 72CC chamber..the pistons are JE's' flattops zero decked to achieve a 12.8 compression...I cant tell you the cam size, altho with the Erson 1.6 ratio, its close to .800 lift with a lot of duration..

Midwest Engine Tech in Mokena, Illinois built my engine...on the dyno running real fat @ 7500 we were close to 760hp...and it was still peaking....with a few break in runs, the engine was re-tuned and still fat (too small of carb), 100+hp was added......its an animal to say the least..

this engine will be going into the 63 Dodge that I am working on...I had it in a 71 Duster that we sold as a roller...

all in all the Bulldogs were a good head with some good massaging...ours was opened up to MAXWEDGE ports and flow past 360cfm on the intake....if you read Mike Stark's (CFM) view on these heads you will see he gets past 400cfm from these...like I say ours is way past the 360 mark...

 

[smokinwoody]

now if I were asked "what head would you use for a good racing head"...it would probably be one of the B-1 heads fully ported...because I have 3500 in those Bulldogs...1400 bare, then 3 guys porting them..

probably would have the same thing in the B-1's and make even more power...would have to go to an aftermarket block to support that kind of HP...IMO

 

[robinsonwr]

Smokinwoody,
I had found a set on the 440 Source homepage they were trying to sell. I actually went with Stealth heads instead for my build because of the factory appearance. The Bulldogs did look appealing but I did not need that much head for my low compression pump gas 512. I may would have reconsidered if building a dedicated track car. The information you supplied is correct about Indy and Amercan made, thanks.

 

[Budnicks]

Buy the time you spend money, time & effort, to try to make the Bulldogs perform & last like the others mentioned, you could have just bought any of the others, I'm just saying... Save yourself the time, money & hassles, just go with the proven combinations of the Victors, B-1's, MP stage VI or the Indy's many styles, from my experiences & understanding of the Pro Comp Bulldog heads, were produced with inferior cheaper quality, lighter, softer & thinner castings & cheap components, like shims, springs, retainers, locks, seals at a minimum, maybe even the valves, maybe I was wrong but, it wouldn't be the 1st or last time, that's for sure, but I do trust my sources... Hell I don't care, run what ever you like, it's all yours to do with what you will, I was just trying to save some people the hassles for many people that try to do performance upgrades on the cheap, then end up doing them over again, spending the hard eared money twice... There's a reason why, they are cheaper... My well wishes to all, if you like the Pro Comp Bulldogs, GREAT FOR YOU, I hope they work well for you, It's Your choice, spend your money how ever you wish... Good luck

 

[4406brl]

I bought mine bare and sent them to Dwayne Porter who did them.
Stock port size flow 308 @ .550 lift.
a decent head but since the Ez's came out no real place for them.
Did you say that pro comp is making them now?

 

[RamNBee]

Bull Dogs are NOT Pro Comp heads. See earlier posts. Bull Dogs were some of the first big flow, bigger valve heads produced to compete with the big Chevy heads and be a more affordable option to the Indy's. If I remember correctly they were marketed as a "Race" head for big cube, high rpm race motors needing a "high flow" head. I needed a more moderate head so I didn't follow up on these. I went to Pro Comps website to see if they had acquired Bull Dog's casting and the head they sell are more comparable to Stealths and Eddys with a bigger valve.
Take care and have fun!
Norman