AFR's vs. Edelbrock

86StangGT · 03-27-2001, 10:32 PM

I've been building my 351 short block for awhile now and it seems my only delima for the last few months have been which heads to use. Ive been planning to use the Performer RPM heads but are the AFR 165 or 186 better? I don't want to use to extreme of heads since this car is my daily driver, but I want something with good top end horsepower. Any suggestions?????

Killercanary · 03-27-2001, 11:04 PM

AFR's all the way. With the 351 I would go with the 185's. The AFR is a great street head. In the case of the 165's, the intake runner is small which keeps velocity up, but they flow as well or better than just about every other head out, even ones with 2.02" intake valves and larger intake runners. This way you get great flow and great velocity- just what a street motor needs. The 185's can be a bit much for a 302, but with the added displacement of the 351, the 185's would be a better choice. Someone correct me if I'm wrong but I believe that even the 165cc AFR outflows the edelbrock performer RPM. I must say though that the edelbrock heads are great pieces with outstanding quality.

------------------
95 GT convt' 5 speed, 3.73's,FMS HD clutch, Pro 5.0 shifter, ASP alum. underdrive pulleys, Bassani offroad X pipe, 2 chmbr flowmasters, K&N w/o silencer, edelbrock performer intake, FRPP 65mm T-body, FRPP shorty headers, FRPP aluminum driveshaft.Hooker 4pt chrome car bar, Xenon/Wings West ground effects, custom interior
Best ET: 13.83
Best MPH: 98.55mph with Best 60': 1.91 on Nitto DR's
Homepage: <A HREF="http://www.angelfire.com/pa2/killercanary" TARGET=_blank>http://www.angelfire

Oldschoolpony · 03-28-2001, 09:46 AM

You might want to wait one morte week. I was told by a speed shop (Racer Walsh) in Jax, fl. That Roush Racing is releasing two new head designs for 351/302 in about a week and that they're supposed to flow better than victor jr's right out of the box with smaller intake runners. you might also want to look at canefeilds. www.panhandleperformance.com has an interesting article comparing flow rates of various heads too.

SaleenGTS · 03-28-2001, 09:52 AM

Go with the order of the alphabet

------------------
Dustin
93 Cobra 261 rwhp
89 GT(Saleen Clone) 392 rwhp(TFS Intake,TFS Heads, BD-11A 9#,Ecam,1.6 rr's, BBK longtubes, lots more...

Mach 1 · 03-28-2001, 12:20 PM

AFR's! My friend just got a set of 185's, and he brought them into work. They are sweet! I would trade my edelbrocks for these things without question. They are more money, came delivered poorly wrapped in cardboard(he wasnt real happy about that), they had several scratched in them, and they dont use heli-coils like edelbrock, but man, do they look like they can flow some serious air!

------------------
1993 GT/AOD
'93 Mustang GT

Green92LX · 03-28-2001, 12:30 PM

I'm not up to date on my AFR knowledge...how do they bolt up? Are they a pain in the a$$ or what?

I'm referring to things such as rockers, pushrods, headers, intakes.....

I went with my 6037's a year and a half ago because they fit mint with no problems whatsoever. Awesome power and they are clean out of the box.

I don't know about you guys, but my take on Twisted Wedge heads I've seen look like $hit out of the box, crappy machine work and rough edges, stud mount rockers (pain in the *****), need new pushrods, valve covers...I was just wondering how the AFR's compared

------------------
1992 LX:V-1 S-Trim ,Edelbrock 6037 Heads,Cobra Intake,E-303,1.6 Rollers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP,24 lb injectors,MSD 6A and BTM,BBK equal length shorties,offroad h-pipe,Mac Flowpath Mufflers,Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors,Ponies w/ 225/50 Nitto NT 450's on front,255/50 BFG Drags out back,93 Cobra Spoiler
Daily driver 89 Coupe:BBK shorties,offroad,flowturds with dumps,soon to be cyber green

Mach 1 · 03-28-2001, 06:08 PM

AFRs bolt up with no problems. The only weird thing about these heads is the max. recommended valve lift is .550. If you want to run a bigger cam than that, they use longer valves and springs on the heads, and charge you more. Stupid if u ask me.

------------------
1993 GT/AOD
'93 Mustang GT

fastang · 03-28-2001, 06:44 PM

KillerCanary, What heads are you using?

------------------
95GT B303 cam, 1.7 rockers, 65mm TB, 73mm MAF, milled heads, 355's K&N, BBK Longtubes, Flowmaster cat back, pulleys, msd coil, 9mm wires, Tremec 3550, Pro5.0 shifter,10.5 Motorsport clutch, FMS aluminum driveshaft, weld in subframe connectors

Killercanary · 03-28-2001, 10:56 PM

I currently still have the stockers on there, but the nice UPS man dropped off my AFR 165/60cc units off tonight right before I left to drop my car off for the 4.10 install. My new setup will be:
AFR 165/60cc pedestal mount heads
Edelbrock performer intake
65mm T-body
1.6 FMS roller rockers
FTI custom cam
FMS shorty headers
off road Bassani X pipe
stock flow tubes (for now)
dynomax race magnums (sp)
stock tail pipes (for now)
ASP underdrive pulleys
FMS HD clutch
FMS 4.10 gears
FMS aluminum DS
Global west subframes
24lb injectors
75mm Pro-M MAF
Pro 5.0 shifter
and lastly Nitto DR's
After all these parts I better damn well be in the 105+mph range, and hopefully with some luck and traction maybe I'll bust out a high 12.9. But for now I'll still be running the old setup but with the subframe connectors and 4.10's, I hope the gears help and don't hurt me now, I know they'll help later. I'm hoping to cut some high 1.8's now with the gears and subframes, if so I may break out a 13.7 at 99mph, that would be a sweet thing to accomplish with a stock headed SN95 convertible.

03-27-2001, 10:32 PM	#1
86StangGT Registered Member Join Date: Dec 2000 Location: slidell, La Posts: 73	AFR's vs. Edelbrock I've been building my 351 short block for awhile now and it seems my only delima for the last few months have been which heads to use. Ive been planning to use the Performer RPM heads but are the AFR 165 or 186 better? I don't want to use to extreme of heads since this car is my daily driver, but I want something with good top end horsepower. Any suggestions?????

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03-27-2001, 11:04 PM	#2
Killercanary Registered Member Join Date: Nov 1999 Location: Altoona, PA Posts: 336	AFR's all the way. With the 351 I would go with the 185's. The AFR is a great street head. In the case of the 165's, the intake runner is small which keeps velocity up, but they flow as well or better than just about every other head out, even ones with 2.02" intake valves and larger intake runners. This way you get great flow and great velocity- just what a street motor needs. The 185's can be a bit much for a 302, but with the added displacement of the 351, the 185's would be a better choice. Someone correct me if I'm wrong but I believe that even the 165cc AFR outflows the edelbrock performer RPM. I must say though that the edelbrock heads are great pieces with outstanding quality. ------------------ 95 GT convt' 5 speed, 3.73's,FMS HD clutch, Pro 5.0 shifter, ASP alum. underdrive pulleys, Bassani offroad X pipe, 2 chmbr flowmasters, K&N w/o silencer, edelbrock performer intake, FRPP 65mm T-body, FRPP shorty headers, FRPP aluminum driveshaft.Hooker 4pt chrome car bar, Xenon/Wings West ground effects, custom interior Best ET: 13.83 Best MPH: 98.55mph with Best 60': 1.91 on Nitto DR's Homepage: <A HREF="http://www.angelfire.com/pa2/killercanary" TARGET=_blank>http://www.angelfire

03-28-2001, 09:46 AM	#3
Oldschoolpony Registered Member Join Date: Mar 2001 Location: Gainsville,Fl Posts: 229	You might want to wait one morte week. I was told by a speed shop (Racer Walsh) in Jax, fl. That Roush Racing is releasing two new head designs for 351/302 in about a week and that they're supposed to flow better than victor jr's right out of the box with smaller intake runners. you might also want to look at canefeilds. www.panhandleperformance.com has an interesting article comparing flow rates of various heads too.

03-28-2001, 09:52 AM	#4
SaleenGTS RICE taste like Chicken Join Date: Jun 2000 Location: Edmond, OK Posts: 687	Go with the order of the alphabet ------------------ Dustin 93 Cobra 261 rwhp 89 GT(Saleen Clone) 392 rwhp(TFS Intake,TFS Heads, BD-11A 9#,Ecam,1.6 rr's, BBK longtubes, lots more...

03-28-2001, 12:20 PM	#5
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	AFR's! My friend just got a set of 185's, and he brought them into work. They are sweet! I would trade my edelbrocks for these things without question. They are more money, came delivered poorly wrapped in cardboard(he wasnt real happy about that), they had several scratched in them, and they dont use heli-coils like edelbrock, but man, do they look like they can flow some serious air! ------------------ 1993 GT/AOD '93 Mustang GT

03-28-2001, 12:30 PM	#6
Green92LX Registered Member Join Date: Jun 1999 Location: North Haven,CT Posts: 336	I'm not up to date on my AFR knowledge...how do they bolt up? Are they a pain in the a$$ or what? I'm referring to things such as rockers, pushrods, headers, intakes..... I went with my 6037's a year and a half ago because they fit mint with no problems whatsoever. Awesome power and they are clean out of the box. I don't know about you guys, but my take on Twisted Wedge heads I've seen look like $hit out of the box, crappy machine work and rough edges, stud mount rockers (pain in the ***), need new pushrods, valve covers...I was just wondering how the AFR's compared ------------------ 1992 LX:V-1 S-Trim ,Edelbrock 6037 Heads,Cobra Intake,E-303,1.6 Rollers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP,24 lb injectors,MSD 6A and BTM,BBK equal length shorties,offroad h-pipe,Mac Flowpath Mufflers,Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors,Ponies w/ 225/50 Nitto NT 450's on front,255/50 BFG Drags out back,93 Cobra Spoiler Daily driver 89 Coupe:**BBK shorties,offroad,flowturds with dumps,soon to be cyber green

03-28-2001, 06:08 PM	#7
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	AFRs bolt up with no problems. The only weird thing about these heads is the max. recommended valve lift is .550. If you want to run a bigger cam than that, they use longer valves and springs on the heads, and charge you more. Stupid if u ask me. ------------------ 1993 GT/AOD '93 Mustang GT

03-28-2001, 06:44 PM	#8
fastang Registered Member Join Date: Aug 2000 Location: santa ana ca Posts: 1,349	KillerCanary, What heads are you using? ------------------ 95GT B303 cam, 1.7 rockers, 65mm TB, 73mm MAF, milled heads, 355's K&N, BBK Longtubes, Flowmaster cat back, pulleys, msd coil, 9mm wires, Tremec 3550, Pro5.0 shifter,10.5 Motorsport clutch, FMS aluminum driveshaft, weld in subframe connectors

03-28-2001, 10:56 PM	#9
Killercanary Registered Member Join Date: Nov 1999 Location: Altoona, PA Posts: 336	I currently still have the stockers on there, but the nice UPS man dropped off my AFR 165/60cc units off tonight right before I left to drop my car off for the 4.10 install. My new setup will be: AFR 165/60cc pedestal mount heads Edelbrock performer intake 65mm T-body 1.6 FMS roller rockers FTI custom cam FMS shorty headers off road Bassani X pipe stock flow tubes (for now) dynomax race magnums (sp) stock tail pipes (for now) ASP underdrive pulleys FMS HD clutch FMS 4.10 gears FMS aluminum DS Global west subframes 24lb injectors 75mm Pro-M MAF Pro 5.0 shifter and lastly Nitto DR's After all these parts I better damn well be in the 105+mph range, and hopefully with some luck and traction maybe I'll bust out a high 12.9. But for now I'll still be running the old setup but with the subframe connectors and 4.10's, I hope the gears help and don't hurt me now, I know they'll help later. I'm hoping to cut some high 1.8's now with the gears and subframes, if so I may break out a 13.7 at 99mph, that would be a sweet thing to accomplish with a stock headed SN95 convertible.