AFR Enforcer heads ?

34293 Views 121 Replies 29 Participants Last post by rednotch, 2 mo ago

tommyad1919

Discussion Starter · Jan 29, 2021

Is anyone using the AFR Enforcer heads? I was looking at rebuilding some GT40 3 bar heads but the price of the enforcers have got me thinking. I understand they are off shore castings with the renegade valve train but being AFR wouldn’t the quality be good? I have seen several write ups but no first hand experience. Thanks in advance.

101 - 120 of 122 Posts

strokeme

· #101 · Nov 24, 2021

Mark O'Neal said:
If you have to label the valves, you don't know what you're doing?

I agree, I am clueless.

Reactions: 1

aurdraco

· #102 · Nov 25, 2021

2

tjm73 said:
I'd give the cam choice a second look see. For auto-X it seems that might not be the best choice. I don't auto-X but don't you spent considerable time in the lower rpm's powering out of turns? RPM's that are relatively low? For not much (if any) more money you can get a cam designed for your intended usage that makes power where you will need/use it.

Auto-xers use the entire RPM range, usually in second, but spend most of our time from about 3krpm to rev limit. XE274HR dyno from Richard Holdener on a "mild 302", seems good to me for auto-x. Yes, the second graph with better heads shifts the peak torque even more to the right but if the car can rev higher, I can put steeper gears in it. Car is 2700 lbs, AL flywheel and driveshaft with 3.55s for now (likely 3.73s or 3.90s in its future), it will dig out of auto-x slow turns just fine with this kind of area under the curve.

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Ed Curtis said:
Once again - low price mandate bites ya.
AFR 8017 springs and XE camshaft - 🤮
Track Heat "and" a spacer? 😨
1-3/4" shorty headers. 🥺
"Polishing?" Is this 1960 with ported and relieved Ford flat heads? 🤬

Life, and budgets, are about compromise. I race for plastic trophies (and sometimes free tires).
"Polishing", oh FFS, forgive me for using the wrong word. I've never ported a set of heads in my life. Guess I'll just watch some Youtube videos and decide if I want to risk trying to improve anything on these heads.

Just curious what numbers people think this combo will make. Maybe we should make it a contest where closest guess, I send them a six-pack of local beer, make it fun. No IPAs though. If you drink IPAs, you are a bad person and should feel ashamed of yourself. Heh.

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sn95gts331

· #103 · Nov 25, 2021

I have the XE274HR cam and it's fine for autocross. With a T5, you'll always be in your RPM band with 3.55's or 3.73's. Of course there are better options, but I know from experience that the cam will absolutely work just fine for driving around cones.

Reactions: 1

superirish

· #104 · 5 mo ago

Eric Weingartner did a couple videos on the enforcer heads.

Reactions: 1

rednotch

· #105 · 5 mo ago

superirish said:
Eric Weingartner did a couple videos on the enforcer heads.

They must be trying to promote sales with the newer smaller valve offering they brought out now for this casting since I've seen a few videos pop up on them recently.. The 274hr cam works for everything sale guys doesn't believe its a dart pro 1 clone either lol. someone close to afr should tell them to look into the china clone heads of thier 185 and 205 that's been popping up lately. Dart and promaxx seem to be carry them now, floteks been OOS for ages on the 205 hammer casting, promaxx added the 185 to their project x line, seen a few small shops selling them so its probably being shopped around again, either way there both decent to play around with on budget stuff ... Can't wait to see the results from swapping the blueprint version of this for the afr version.. Pretty sure he all ready put decent springs on the blue prints for an old video.

Ed Curtis

· #106 · 5 mo ago

Most of these BoobTube characters suffer from a severe case of megalomania bordering on total narcissism...

"Hey everyone, it's me on YouTube..."

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Quote Chris Uratchko: "Generations above them were never perfect... we all have our shortcomings. But..... you can't disagree that they don't know what bathroom to use. It's not disagreeable. And for the most part... it's an anomaly to find a millennial or younger who can even have a proper eye to eye discussion. Millennials and under for the most part have been programmed to be communist activists from Day Care to College.... It's really simple as that. Not really opinion but more fact ... And Drag Racing will be done once the money train of my generation and older have passed on."

Quote Mark O'Neal: "Virtually every customer I have has the same first interest. That is what is the lowest price he can pay. People like myself, Ed and very few others on this board have spent decades learning what we know.....and y'all want that knowledge for free....and you'll take the parts for free as well."

rednotch

· #107 · 5 mo ago

Ed Curtis said:
Most of these BoobTube characters suffer from a severe case of megalomania bordering on total narcissism...

"Hey everyone, it's me on YouTube..."

I guess you haven't seems Vizard's latest video hawking 4 bolt conversions and valley girdles on stock sbf blocks good for "1000" hp lol.... Yes please throw high dollar parts on something that will eventually fail catastrophicly lol. At least there not doing giveaways yet to hawk cheap merch...

Reactions: 1

65fasback

· #108 · 5 mo ago

rednotch said:
I guess you haven't seems Vizard's latest video hawking 4 bolt conversions and valley girdles on stock sbf blocks good for "1000" hp lol.... Yes please throw high dollar parts on something that will eventually fail catastrophicly lol. At least there not doing giveaways yet to hawk cheap merch...

Bad language in this link. Be warned!

Fast forward to about two minutes 25 seconds. You will hear some very good information on a stock block record holder and what they have done. I met the guy on the right at his shop late last week. He is building the carburetor for my new motor.

65fasback

· #109 · 5 mo ago

Sorry, stock short block record holder. Stock ‘91 mustang 5.0L block, pistons, rods, crank, balance, and hardware.

Sounds like the stock block record will be their next effort.

98yellowstangGT

· #110 · 5 mo ago

Ed Curtis said:
Most of these BoobTube characters suffer from a severe case of megalomania bordering on total narcissism...

"Hey everyone, it's me on YouTube..."

You don’t look like yourself in this picture Ed!!

hope you are doing well!

Reactions: 1

65fasback

· #111 · 5 mo ago

We have a new comedian. Lol

Ed Curtis

· #112 · 5 mo ago

98yellowstangGT said:
You don’t look like yourself in this picture Ed!!

hope you are doing well!

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Quote Chris Uratchko: "Generations above them were never perfect... we all have our shortcomings. But..... you can't disagree that they don't know what bathroom to use. It's not disagreeable. And for the most part... it's an anomaly to find a millennial or younger who can even have a proper eye to eye discussion. Millennials and under for the most part have been programmed to be communist activists from Day Care to College.... It's really simple as that. Not really opinion but more fact ... And Drag Racing will be done once the money train of my generation and older have passed on."

Quote Mark O'Neal: "Virtually every customer I have has the same first interest. That is what is the lowest price he can pay. People like myself, Ed and very few others on this board have spent decades learning what we know.....and y'all want that knowledge for free....and you'll take the parts for free as well."

Reactions: 1

rednotch

· #113 · 5 mo ago

65fasback said:
Bad language in this link. Be warned!

Fast forward to about two minutes 25 seconds. You will hear some very good information on a stock block record holder and what they have done. I met the guy on the right at his shop late last week. He is building the carburetor for my new motor.

Anyone who does that type of stuff knows its not if it will fail, it's when. Same for the LS stuff when you push the limits. I've seen my share of trashed 8.2 and 9.5 stock blocks esp roller blocks. Hell Tony even admits he killed the orig block when grey mare was "n.a" and that things a feather weight.. Lunchbox loves to talk **** lol. Used to be on all the old forums, good dude. Tess actually has the no name version of these heads on her street capri... Looked like they had a decent clean up in some of the videos the did on another channel. Think she trapped in the 120 range with an n91 cam in it ,probably see them pick up a good amount dialing it in and she gets more confident rowing gears..

65fasback

· #114 · 5 mo ago

Dropped some parts off with Lunchbox at his shop to build me a carburetor and got to chat with him for a bit a week ago. Super professional and very accommodating. He does know when to ham it up. As is clearly seen from many of his videos. Walked away feeling like I’m dealing with the correct guy.

Reactions: 2

65fasback

· #115 · 5 mo ago

Tony’s late model roller block was turning over 8,500 rpm as a 331. Lasted longer than I would have expected.

Tess’s engine has been together since 2012. Bone stock short block but I imagine it does have valve reliefs cut into the pistons. However they are twisted wedge heads so maybe not. Crazy it has lasted.

Each have got more than their moneys worth in those cases. Tony is supposed to do a Mexican block 331 to go after the current stock block record.

Lunchbox brought up her street car. I guess it’s been 11.1x so far. Will definitely get faster as she learns how to shift and launch that thing.

CDW6212R

· #116 · 5 mo ago

How much do you trust a used engine like the 302 HO's, coming from a used car? I have suggested to people that they should hunt any decent mileage Mark VII's, from 1987 to 1992. Those all were 302 HO's and with the AOD trans, never shifted above 4500rpm. They are way more scarce now though, but when they do, I think they are the best 302 you can find.

I'm glad I have my low mileage 92 Mark VII for the 54k engine, but because I can swap the shortblock into my 98 project Explorer(227k miles). I hope to need it for less than a year while I do most of the project work, then I can resell it with the GT40P heads. All costs have gotten crazy lately, a nice used 302 HO is now a big deal.

rednotch

· #117 · 4 mo ago

CDW6212R said:
How much do you trust a used engine like the 302 HO's, coming from a used car? I have suggested to people that they should hunt any decent mileage Mark VII's, from 1987 to 1992. Those all were 302 HO's and with the AOD trans, never shifted above 4500rpm. They are way more scarce now though, but when they do, I think they are the best 302 you can find.

I'm glad I have my low mileage 92 Mark VII for the 54k engine, but because I can swap the shortblock into my 98 project Explorer(227k miles). I hope to need it for less than a year while I do most of the project work, then I can resell it with the GT40P heads. All costs have gotten crazy lately, a nice used 302 HO is now a big deal.

All depends on what you want to do.... Honestly, for a fun driver type car coyote swaps are looking better and better with the way prices for sbf stuff has gone, a good intake and heads and I can pick up a totaled gen 1/gen2 gt for about the same. Cheap swap headers are finally starting to show up, hardest part for most is the wiring these days. I all ready started collecting parts for one if I find any deals lol. Watched too many ppl burn out on a race only cars, rather have a fun driver these days that i can drive to and from the track.

Reactions: 2

tmoss

· #118 · 4 mo ago

rednotch said:
Watched too many ppl burn out on a race only cars, rather have a fun driver these days that i can drive to and from the track.

Got there about 20 years ago when I got my 88 GT vert 5spd for a daily driver. I was working on Fastlane race cars and tracking frequently so that was covered. Freshened the 88 up (after a dog bone jumped and wiped out the SD cam) with a A9L MAF conversion, ported Explorer, F/S prepped GT40P heads(1.85 I/1.55 E Manley undercut stem valves), Crower cam, 1 5/8 shorty MACs I had Jet-Hot coated, 308 to 373 rebuilt diff, rebuilt T5 with new clutch. Sold the Explorer to a customer about 2 years later who wanted one quick and paid well for it then put a Holley SM2 on it. That's the way it sits today in my daughter's garage and it's still fun to drive.

Reactions: 2

aurdraco

· #119 · 2 mo ago (Edited)

aurdraco said:
Guess I'll just watch some Youtube videos and decide if I want to risk trying to improve anything on these heads.

Enforcer head update that I'm sure the experts know but something I didn't realize until machine shop pointed it out to me today (my engine has been there since last year, near the finish line finally). Track Heat lower intake has 1.2" wide exit port. Enforcer head has 1.07" wide intake port. Heads will need to have a pinch more than 0.065" removed on each side to to be slightly larger than the intake's head port. I'm just going to let the shop handle that instead of risking messing anything up. Anyhow, something to keep in mind that I didn't think of earlier. Hope to have the engine next month and installed in May and at SCCA Solo II Nationals (C-Prepared) in September.

Oh, and my heads, which were advertised to be 59cc, were 64cc. AFR changed the data on the website a while back, I actually called them to ask if the new figure was a typo or if the old one was. I was led to believe mine would still be 59cc but oh well. The shop was still able to flat mill them to 56cc without removing the valves. Since valves have to come out now for the porting, I may ask them to take that last .006" off to get to our original 55cc goal but he will probably recommend against as he said the lower intake fit perfectly without any milling during today's mock up.

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tmoss

· #120 · 2 mo ago

AFR says they are 1.07"w but in fact are larger in our experience. About 2 months ago, I measured the narrowest section at 1.15"w. As you look at the head, the ports on the left wall actually have a small arc to them with the center being where the 1.15" dimension was found to be. And on that side there is a small vertical pinch area that could be easily removed to smooth the transistion.

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