PROCOMP HEADS ------ STICKY------

Can i get all the knowledgable guys to post there findings on these heads ...the good , the bad and the ugly so i can archive the info .........

so that we can reference this thread to all procomp questions

thank you
Nick

here are some pics of the CNC version which sell for 749.99 each

here are some more pics of the head ...these were CNC ed by another company

here is a good thread to read

http://www.fordmuscle.com/forums/all-ford-techboard/459975-procomp-460-heads.html

and another thread to read

http://www.460ford.com/forum/showthread.php?t=135112&highlight=procomp

Some will say those are really good ProComp heads, they are cut up in pieces!!

How much cost does CNC porting add to the cost?

Out of the box flow #'s would be good to compare. Also if there is any piece to piece variations.

Bill

Out of the box their flow numbers are terrible; the valve job is so crude that no matter how good the port, it has no airflow. It can be made to be decent. NOT a race head by any means.
It's a good casting to start with and go from there but, "as is" it's just a chunk of metal like a stock iron head, (except it's aluminum), which NEEDS major improvement.

It's lighter and looks nice though...!

billandlori wrote:Some will say those are really good ProComp heads, they are cut up in pieces!!

How much cost does CNC porting add to the cost?

Out of the box flow #'s would be good to compare. Also if there is any piece to piece variations.

Bill

Bill here is what they say the out of box flow #s are

Aluminum Cylinder Heads

Intake Runner 300cc
Exhaust Runner 100cc
Combustion Chamber 95cc

Aluminum Cylinder Heads Feature:

Hardened Seats
Bronze Valve Guides
High Grade Aluminum
Multi-Angle Seat Design
Available Complete or Bare
Available fully CNC Machined
Designed Performance Valve Springs
Advanced Port Design for Greater Flow

Flow Numbers

Intake Flow


Exhaust Flow

.100
.200
.300
.400
.500
.600
.700


59.8
115
172
243
302
322
330


.100
.200
.300
.400
.500
.600
.700


48
98
125
158
186
195
203

All Heads Priced Individually.

IMO they have their place, but overall I'd rather spend my hard earned money on something American and something of higher quality, better design and something that has better potential for the money spent.

Please verify the source and method of flow testing on those Bruno......

It seems that once you pay for the porting (CNC or hand) you could have bought better out of the box heads and have more room to grow.

I suppose you can make any thing work given enough time and money but sometimes it comes down to spending a dollar to save a dime.

Clown Shoes.....LOL

Bill

bruno wrote:

billandlori wrote:Some will say those are really good ProComp heads, they are cut up in pieces!!

How much cost does CNC porting add to the cost?

Out of the box flow #'s would be good to compare. Also if there is any piece to piece variations.

Bill

Bill here is what they say the out of box flow #s are

Aluminum Cylinder Heads

Intake Runner 300cc
Exhaust Runner 100cc
Combustion Chamber 95cc

Aluminum Cylinder Heads Feature:

Hardened Seats
Bronze Valve Guides
High Grade Aluminum
Multi-Angle Seat Design
Available Complete or Bare
Available fully CNC Machined
Designed Performance Valve Springs
Advanced Port Design for Greater Flow

Flow Numbers

Intake Flow


Exhaust Flow

.100
.200
.300
.400
.500
.600
.700


59.8
115
172
243
302
322
330


.100
.200
.300
.400
.500
.600
.700


48
98
125
158
186
195
203

All Heads Priced Individually.

Those flow numbers MAY be correct for a 300 cc port with a good valve job however, definately NOT "out of the box".
First of all, the intake runner without modification is about 270 cc's and max flow with a good valve job and an "out of the box" port is only anout 300 cfm on the intake side.

richter69 wrote:Procomp = clown shoes.................. It is what it is.

"WE" know Jon but the newbies/rookies dont ------- lets make a case in reguards to these heads not just bashing them !!!! ....... im not here to stick up for those china castings just lay out all the facts weather good (if any) or bad

thxs guys

From what I gather, if you have to go and do a bunch of porting to get them to work you would be money ahead using iron heads and follow the mad porter's instructions. Its not a cheap hobby but the iron heads would be more economical.

Bill