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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

Need help w/ possible mis match heads

  • Thread starter Thread starter jwk72
  • Start date Start date Feb 16, 2019
J

jwk72

Member
Dec 7, 2018
23
4
13
Gibson City, Illinois
Feb 16, 2019
#1
  • Feb 16, 2019
  • #1
So last week I found out while replacing a head gasket on my ‘95 w/ 5.0 that one of the heads (GT40P) was cracked. Been looking into options to replace them because I can’t pull off a set of $1000 plus heads right now. Have had several people offer to ship me direct replacements which is where I may end up, but I found a set of heads that might be a nice upgrade but have a question about them.

Found a set of Edlebrock Performer RPM heads but it seems to not be an exact matched set. I’m including pics below. Overall they look the same but the bottoms have slight differences. In the description it says that the heads are “from different molds but have the same casting numbers”. I was told the slots in the bottoms are called “steam holes” or something. Can these two heads be used on the same engine or no? I’m not running a high HP setup. Basically stock with very mild cam (unless I upgrade), exhaust and cold air intake. If the slots are a problem, can they be machined in or would than not be financially worthwhile? Guy is asking $475. Has a set of nice 1.72 rockers but to be honest my knowledge of head tech isn’t good and I’m not sure if those will work or not. I’ll copy and paste specs that were listed below. Sorry if pics posted weird, posted from iPad... Thanks!

This was ad...
“Edelbrock performer rpm bare heads for ford 302/351. They have 190cc intake runners made for 2.020 intake and 1.60 exhaust valves. Heads came from different molds but have same casting numbers as you can see from pictures. Everything is the same. I will throw in a set of 1.72 rocker with heads.”
 

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Dan02gt

mazing how much gas smell came from that tiny hole
20+ Year Stangneter
Mar 2, 2003
909
415
113
Greenville, NC
Feb 16, 2019
#2
  • Feb 16, 2019
  • #2
Definitely odd one of them must be a newer design. As long as the combustion chambers are the same size I would think it would be fine to run them.
 

JD1964

there is enough sticking out to grab on to
15 Year Member
Jun 28, 2013
3,427
1,519
194
Maryland
Feb 16, 2019
#3
  • Feb 16, 2019
  • #3
Those heads, even if they are ok to use together are bare. Have you checked the price to fill them with valves, springs, retainers, keepers? That stuff adds up.

On closer look, those combustion chambers look different. If they came from different places, how would you know if either or both had been milled. And if so, how much? Lots a ways to go wrong here. I think I'd keep looking
 
Reactions: jwk72

General karthief

wonder how much it would cost to ship you a pair
5 Year Member
Aug 25, 2016
27,864
10,536
203
polk county florida
Feb 16, 2019
#4
  • Feb 16, 2019
  • #4
They look like trouble to me.
 
Reactions: a91what and JD1964
J

jwk72

Member
Dec 7, 2018
23
4
13
Gibson City, Illinois
Feb 17, 2019
#5
  • Feb 17, 2019
  • #5
Yup, after doing some reading I’m passing.
 
Reactions: General karthief
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