Cylinder heads for blown 331

Dave_mustang_50 · 06-16-2003, 12:05 PM

OK its time for heads, Im thinking of afr185 or track heat. anyone got any pros or cons for them? Or even another brand. Im taking all info.
Thanks

Hozer 88GTConv · 06-16-2003, 04:13 PM

afr 185's for sure...If I had to do it all over again.

I have TFS TW's and they are good but 185's are just a hair better I believe.

BilLster · 06-16-2003, 05:39 PM

what about putting that money into your holley's ? $2000.00 into porting and polishing i wonder how they would flow ?

or are you going to sell the holley's ?

bri32zz · 06-16-2003, 09:57 PM

Keep your heads and PORT them man!!!!!!! All you need is a base head to work with for your application. I believe you would be very happy with some race porting on those Holley heads. My heads flow 340 cfm and they rock! Save your money and port them.

LX XLR8R · 06-17-2003, 12:23 PM

canfeilds and trick flow "r"s are great blower heads..i own AFR 185's for a NA aplication..had i gone blower i would of gotten trick flow "r"s

Dave_mustang_50 · 06-17-2003, 08:16 PM

dss told me that with my heads the comp ratio would be 9.2:1 . Seems a tad high for 14 lbs to me. Flow really isnt that important, This is a street car and i believe it will be strong enough.I think they are 62cc heads. I need to check.

BilLster · 06-17-2003, 09:19 PM

ok then they port the roof of the heads to raise the cc and lower compretion ratio if thats what you want. if there 62's then most of the other heads might even raise it above 9.2-1

Dave_mustang_50 · 06-18-2003, 03:45 PM

Sounds good, im gonna check with my speed shop tomorrow about a good place for head work.

06-16-2003, 12:05 PM	#1
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	Cylinder heads for blown 331 OK its time for heads, Im thinking of afr185 or track heat. anyone got any pros or cons for them? Or even another brand. Im taking all info. Thanks __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.

06-16-2003, 04:13 PM	#2
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	afr's afr 185's for sure...If I had to do it all over again. I have TFS TW's and they are good but 185's are just a hair better I believe. __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

06-16-2003, 05:39 PM	#3
BilLster Registered Member Join Date: Oct 2000 Location: Ontario canada Posts: 446	what about putting that money into your holley's ? $2000.00 into porting and polishing i wonder how they would flow ? or are you going to sell the holley's ? __________________ 89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .

06-16-2003, 09:57 PM	#4
bri32zz Registered Member Join Date: Aug 2002 Location: Canton GA Posts: 216	Keep your heads and PORT them man!!!!!!! All you need is a base head to work with for your application. I believe you would be very happy with some race porting on those Holley heads. My heads flow 340 cfm and they rock! Save your money and port them. __________________ My CAR IS GONE R.I.P----I miss YOU 331ci, 69 Windsor heads ported and shaved , Trick Flow-Intake ported,JE blower pistons, Custom cam 542 lift, 1.73 rrs, Equal length headers, BBK Hi-Flow cats, Hurst shifter, 3:73 gears, Tremec 3550 tranny,Lakewood drag suspension-90/10 in front and 50/50 in the back. Lakewood traction bars. Edelbrock 70mm tb, K&N filter, Kirban fuel reguator, Custom sub-Frame connectors,83 lb squirters, powerdyne blower with 12psi pulley, http://www.pumpoperators.com/brian/ Rice Haters Club Member #82 My wife is AWSOME!!!!!!!!

06-17-2003, 12:23 PM	#5
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	canfeilds and trick flow "r"s are great blower heads..i own AFR 185's for a NA aplication..had i gone blower i would of gotten trick flow "r"s __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

06-17-2003, 08:16 PM	#6
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	dss told me that with my heads the comp ratio would be 9.2:1 . Seems a tad high for 14 lbs to me. Flow really isnt that important, This is a street car and i believe it will be strong enough.I think they are 62cc heads. I need to check. __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.

06-17-2003, 09:19 PM	#7
BilLster Registered Member Join Date: Oct 2000 Location: Ontario canada Posts: 446	ok then they port the roof of the heads to raise the cc and lower compretion ratio if thats what you want. if there 62's then most of the other heads might even raise it above 9.2-1 __________________ 89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .

06-18-2003, 03:45 PM	#8
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	Sounds good, im gonna check with my speed shop tomorrow about a good place for head work. __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.

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