Pro Comp heads
05-25-2009, 04:30 PM
#21
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He did back them up with facts and personal experience...unless he was lying of coarse...that's what you asked him....share his experience that he based his opinion on.
I wasn't bashing or promoting. I wouldn't be afraid to use them on something with a small spring...I wish I could find it, but there was a seller/engine guy that advertises on ebay that did a pretty detailed write up on them...they built a set and put them on a chevelle they had with a BBC and then dynoes it. He went into a lot of detail about them and gave his OPINION based on what he saw when he did the heads...best I remember his only big complaint was he didn't think the casting was thick enough if they were cut for big springs....What sort of spring preasure are you running, how long have you owned the heads and how do you like the heads so far?
I wasn't bashing or promoting. I wouldn't be afraid to use them on something with a small spring...I wish I could find it, but there was a seller/engine guy that advertises on ebay that did a pretty detailed write up on them...they built a set and put them on a chevelle they had with a BBC and then dynoes it. He went into a lot of detail about them and gave his OPINION based on what he saw when he did the heads...best I remember his only big complaint was he didn't think the casting was thick enough if they were cut for big springs....What sort of spring preasure are you running, how long have you owned the heads and how do you like the heads so far?
In regards to the ProComp bbc heads that I have personally worked on, half were outright unacceptable, and returned. Of the sets that were kept, most needed considerable rework. This includes valve seats that were up to .025" off center of the valve guide. Also heads that had varying seat depth (stem height). Several heads needed seats replaced due to excessive depth and seat contact area too wide. Most of the time, the machined dimensions were consist from cylinder to cylinder in the same head, but varied too much as a set.
05-25-2009, 05:55 PM
#22
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I think the e-bay guy you mean is Skip White,and I think they were sbc heads,what I know is when they first hit the market there were some flaws but there are a lot of good builders using the bbc bare casting and installing their parts,and having good results.again I meant nothing negative here,But I dislike when people say"I heard",and lets be real,all the big name guys have had their share of issues over the years........just my .02
05-25-2009, 06:47 PM
#24
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Re: Pro Comp heads
Originally Posted by bubbabbc
I'm not going to help this topic get into a bigger pissing contest than it already has. Bluesmoke asked for opinions concerning cylinder heads. I gave him my thoughts, and why. If he elects to pony up and buy quality heads, great. If he opts to go with the ProComps, that's ok too. I didn't try to sell him heads, and I didn't try to get his work. I'm certain whichever shop he chooses to do his engine will be glad if he goes with the proven heads.
Brotherton at Brodix, Mastin at Dart, and Sperling at AFR market quality cylinder heads because it's their love, not just their business. When they finish their production runs of bbc heads, they'll move on to sbc, or sbf. What is the Chinese factory gonna run next, sbc or 10,000 garbage disposal housings. I honestly don't know, do you?
When a company markets poor quality products or services, that not only hurt the customer, they also hurt the companies that provide quality parts and services. If a customer has a limited amount to spend on an engine, and he gets straddled with junk, it leaves him with bad feelings towards the industry in general.
If you have any further thoughts, concerns, or questions in regard to my opinions, contact me. Let's not bore everyone else with a personal debate. Sorry if I offended anyone, my intent was to offer bluesmoke my opinion on cylinder heads.
Skip Ohnmacht
www.portcitymachine.com
Brotherton at Brodix, Mastin at Dart, and Sperling at AFR market quality cylinder heads because it's their love, not just their business. When they finish their production runs of bbc heads, they'll move on to sbc, or sbf. What is the Chinese factory gonna run next, sbc or 10,000 garbage disposal housings. I honestly don't know, do you?
When a company markets poor quality products or services, that not only hurt the customer, they also hurt the companies that provide quality parts and services. If a customer has a limited amount to spend on an engine, and he gets straddled with junk, it leaves him with bad feelings towards the industry in general.
If you have any further thoughts, concerns, or questions in regard to my opinions, contact me. Let's not bore everyone else with a personal debate. Sorry if I offended anyone, my intent was to offer bluesmoke my opinion on cylinder heads.
Skip Ohnmacht
www.portcitymachine.com
I also know even the best head guys (one mentioned on this post) can screw up good heads so maybe not all sets have been junk ??
05-25-2009, 06:58 PM
#25
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Bluesmoke asked for opinions about cylinder heads. I answered as honestly as I could. IMO, buying Pro Comp heads is like rolling the dice.
Do you feel lucky? The one thing that bothers me the most about these heads is what I don't see. What am I overlooking? When you compare the money you may save if you're fortunate against the cost of what you may lose if you're not, the odds, IMO, are not good. For a few hundred bucks more, buy the good stuff. There is no doubt in my mind that Nye's is a very competent shop. If they're comfortable using the Pro Comp, great. I'm not.
Do you feel lucky? The one thing that bothers me the most about these heads is what I don't see. What am I overlooking? When you compare the money you may save if you're fortunate against the cost of what you may lose if you're not, the odds, IMO, are not good. For a few hundred bucks more, buy the good stuff. There is no doubt in my mind that Nye's is a very competent shop. If they're comfortable using the Pro Comp, great. I'm not.
05-26-2009, 04:07 AM
#26
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Originally Posted by bubbabbc
Gungho, I have a good customer that lives about 10 miles from you in Haverhill. Maybe I'll get a chance to check out your 540. It will have to be at the track, cuz we don't street race.
05-26-2009, 04:25 AM
#27
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Originally Posted by gungho
Originally Posted by bubbabbc
Gungho, I have a good customer that lives about 10 miles from you in Haverhill. Maybe I'll get a chance to check out your 540. It will have to be at the track, cuz we don't street race.
05-26-2009, 08:10 AM
#28
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Hey gungho, I told you I had a good customer in MA. Who said drag racing customer? When are you gonna answer the questions? How much experience have you got with Pro Comp heads. You're the one evading the truth. I don't own a drag car. I do mostly oval track engines.
You bought sh*t heads and now you're insulted. Do you also own a Daewoo? C'mon keyboard jockey, tell us you're story. Who are you?
What's your times?
You bought sh*t heads and now you're insulted. Do you also own a Daewoo? C'mon keyboard jockey, tell us you're story. Who are you?
What's your times?
05-26-2009, 08:54 AM
#29
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Originally Posted by bubbabbc
Hey gungho, I told you I had a good customer in MA. Who said drag racing customer? When are you gonna answer the questions? How much experience have you got with Pro Comp heads. You're the one evading the truth. I don't own a drag car. I do mostly oval track engines.
You bought sh*t heads and now you're insulted. Do you also own a Daewoo? C'mon keyboard jockey, tell us you're story. Who are you?
What's your times?
You bought sh*t heads and now you're insulted. Do you also own a Daewoo? C'mon keyboard jockey, tell us you're story. Who are you?
What's your times?
05-26-2009, 08:58 AM
#30
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You are getting all upset because he insulted the brand of cylinder head you chose to put on your engine???...LMFAO
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Yea o.k. me offering to race my "junk" is getting upset? Tod74 you are the with a tubbed car with no chute,Yea,you must be flyin.....
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Yea o.k. me offering to race my "junk" is getting upset? Tod74 you are the with a tubbed car with no chute,Yea,you must be flyin.....