Resolved

GOvert · Jun 30, 2024

resolved

Noobz347 · Jun 30, 2024

https://www.vintage-mustang.com/threads/headers-to-fit-gt40p-heads-in-a-65-mustang.896817/

GOvert · Jun 30, 2024

Thank you.

Noobz347 · Jun 30, 2024

GOvert said:
Thank you. I think after reading that link and the fact that I'm using Tri-Y headers, While the engine is getting freshened up, I'll get shad of the "P" heads.
Alot of the Explorer guys like them. Anyone near north Alabama have a good set of either E7T truck heads or F6T (3 hash mark truck and Explorer) heads?
I know of a '67 currently on a lift that I can go see about the space/clearance as it has to do with an AOD/4R70W.

Try the classifieds section. Create a [Want] ad.

AeroCoupe · Jul 1, 2024

I would say it’s a 50/50 shot that by the time you clean a set of heads up you could literally buy the AFR Renegade heads and spend the same money and have a far superior head.

GOvert · Jul 1, 2024

resolved

AeroCoupe · Jul 1, 2024

Yeah I misfired there. I was thinking of the Enforcer heads not the Renegades. $650 a head assembled so $1300 for a set of fully assembled aluminum heads that will wake a stock short block up.

185cc SBF Enforcer Cylinder Head

Cylinder Head Specialists

www.airflowresearch.com

https://www.summitracing.com/parts/afr-1351?seid=srese1&gclid=CjwKCAjwp4m0BhBAEiwAsdc4aM7kGYzCi7eWtForwC9nMGlVLlsfNQuY7hcQV4P25DFKnqHPjc0qEhoCFhIQAvD_BwE

rednotch · Jul 1, 2024

Darts SHP 175 heads can be bought for $1080 assembled if you shop around. The 175 is same casting as the pro max 180 and old sve 175 casting, its a good China clone of an edelbrock head, the hydraulic 1.437 spring set up is decent, Pac 135lb @1.800 springs and Manley valves. Sve also has the china afr clones, porter casting assembled for 1k or the CNC 185 for 1299 but sold out fast, probably all ready ordered more. Not sure on the valve train parts but casting is good.

The afr enforcer is a dart clone, if your not after the 1.90 valve head, summit brands the same exact thing, 8mm valves, Pac springs for a bit less and often is available in there 10% off deals. https://www.summitracing.com/parts/...th7jpqEDU8GfQMjwu7sBIFOFbsrDTwNBoC624QAvD_BwE

Promaxx is another decent option if you can get them for around $1100 or less.
Lots of budget heads these days.

If you where local I'd give ya a pair of e7's, there door stops in my area, gt40's are not worth what ppl are trying sell cores for now and machine work and valve train prices going up. Edelbrock group getting greedy as hell.

GOvert · Jul 7, 2024

I think that a couple of you missed the point of my original question. Thanks though for the information about aluminum performance heads.
I'll ask it again...
I was curious if anyone has used a 5.0 with the "P" heads in a 1965 or 1966 Mustang in particular but the main question is, will "Tri-Y" exhaust headers or Hi-Po exhaust manifolds fit the "P" heads when installed in the 1965 and 1966 Mustang bodies? That is the narrowest body between the shock towers. Would the spark plugs be more difficult to change? I hope to gain some information from someone else's experience.
Noobz347, I did read the information that you pointed me towards.
Picture below is of a modification that someone did to their early stock manifolds. To me it looks as though the area of the casting could be getting
quite thin after the custom carving.

I'

Jarhead67 · Jul 7, 2024

GOvert said:
Thank you. I think after reading that link and the fact that I'm using Tri-Y headers, While the engine is getting freshened up, I'll get shad of the "P" heads.
Alot of the Explorer guys like them. Anyone near north Alabama have a good set of either E7T truck heads or F6T (3 hash mark truck and Explorer) heads?
I know of a '67 currently on a lift that I can go see about the space/clearance as it has to do with an AOD/4R70W.

You shouldn’t have any trouble finding 3 bar heads cheap.

GOvert · Nov 30, 2024

I worked out the exhaust manifold issue on the Explorer 5.0 coil-near-plug proof of concept engine. I have a 1996 F-150 5.0 drivers side manifold on the left side, and I used a 1977 Mustang II 302 passenger side manifold for the right.

Bullitt347 · Dec 1, 2024

Todays auto manufacturers don't really care about spark plug access, or access to other components, and I suppose if you think about it, maybe neither should you.
Todays spark plugs, assuming a well tuned engine, last around 100K miles or more.
How long before you get to 100K miles?
How often to do you expect to have to replace the spark plugs?
Given that, is it really that big of a deal?
A 2017 and up Colorado with the V-6 has a labor time of 7 hrs to replace a stater. Probably has the same life expectancy as spark plugs.

Now that this has been said..
If you think because of tuning issues, engine quality issues and other factors that replacing spark plugs is going to be a regular yearly occurrence, then by all means, getting easy access to the spark plugs is important.

GOvert · Mar 23, 2025

Spark plugs do not last 100K miles. I've been working on small block Fords in 1965-66 Mustangs for 50 years. Access is an issue for me.

Bullitt347 · Mar 23, 2025

GOvert said:
Spark plugs do not last 100K miles. I've been working on small block Fords in 1965-66 Mustangs for 50 years. Access is an issue for me. What kind of Ford is a Colorado?

Spark plugs do last 100K miles.
Modern electronics work wonders.
You won't get 100K out of spark plugs on older vehicles, thus your experience is different.
I too have been working on cars for over 40 years, still do every day of the week.
I see vehicles every few weeks in the shop (Chevrolet Dealership) with over 100K on original plugs.
Do they need to be changed? Yup, but they did make it over 100K.

A Colorado is a Chevrolet P.U.
I used it as an example regarding access issues designed into a vehicle.

GOvert · Mar 23, 2025

resolved

Resolved

GOvert

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

GOvert

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

AeroCoupe

lube between the nut and the face. I know my lubes

GOvert

AeroCoupe

lube between the nut and the face. I know my lubes

185cc SBF Enforcer Cylinder Head

rednotch

I'd like to remain having one chocolate starfish

GOvert

Jarhead67

GOvert

Bullitt347

I have been doing it wrong this whole time

GOvert

Bullitt347

I have been doing it wrong this whole time

GOvert

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Stangnet Facilities Maint Tech... Er... Janitor

Stangnet Facilities Maint Tech... Er... Janitor

lube between the nut and the face. I know my lubes

lube between the nut and the face. I know my lubes

I'd like to remain having one chocolate starfish

I have been doing it wrong this whole time

I have been doing it wrong this whole time

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