Which heads with pedistal mount rockers

MikeBlackGT · 06-26-2001, 04:15 PM

My question is regarding head choice with pedistal mounted rockers, i have crane 1.6 roller rockers and the crane2030cam with 544 lift, i originally wanted the trickflow street heads but have since been told that they use only stud mount rockers, i would like to find the best head and use my pedistal mounts, any opinion or option is apreciated ,thanks in advance(would prefer an aluminum head)

------------------
93Gt 60,000 org miles on car,Check sig in user rides for mods, 12.71@109 on 255BFG DR's CAR weighs 3560 w/me 1.70 60'

TJR · 06-26-2001, 05:45 PM

I've never used any of these heads, but I would go with:

1. Brodix ST 5.0
2. GT-40X
3. Holley
4. Edlebrock Performer

Just my opinion....I doubt there is much difference between them. BTW, that cam might be a bit big, what does everyone else think?

------------------
1989 lx notch
89,000 miles
bolt-ons,stock heads/cam
60'- 2.07, 8.90@78, 13.93@99

cojonepony · 06-26-2001, 09:44 PM

If your wallet's fat enough I would say get AFR's without a doubt. They put up similar flow #'s in comparison with twisted wedge heads, but they have smaller runners and valves which means good velocity and torquey performance on a street motor.

TJR · 06-26-2001, 11:12 PM

I forgot about the AFRs. I'd put them at the top of that list, but figure on paying $1400. Also, some people have had problems with the rocker arm bolts being too long on the pedistal mount versions. The bolts are threading in all the way to the bottom of the pedistal, before the rocker is even set to zero lash. They might call for longer than stock pushrods.

------------------
1989 lx notch
89,000 miles
bolt-ons,stock heads/cam
60'- 2.07, 8.90@78, 13.93@99

Dark Knight · 06-27-2001, 12:02 AM

cant complain about my ped mount AFR's..

------------------
84 convt,'95 302,AFR's, performer
3.55's, underdrives BBK shorties
stock cam, 1.7's
13.85@102.5
and a '68 stang that WAS nasty ;-)

MikeBlackGT · 06-27-2001, 01:51 AM

Thanks for the advice guys was thinking about the afr's anyway,but i think i'll go for them for sure, i have longer pushrods already, stock ones were about 15thou to short ,so i put in some comp cam 6.400,s with shims and the work great, will the afr heads be ok, with the big lift cam i have?544/533lift

n8s_stang · 06-27-2001, 02:10 AM

Mike, just be sure to ask AFR what the springs that come with the heads are good to lift wise. I doubt they will be good to that amount of lift, so you might have to get them to upgrade the springs.

PS. I'm in North Delta

MikeBlackGT · 06-27-2001, 03:43 PM

Thanks N8 i'll be sure to ask them about the springs,i didn't even think about that, anyway r u going to mission on friday i'll be testing out my new combo with the cam,rockers ect... i just put in,wanted to see what kind of performance the cam ect made with stock heads before i get the afr's

------------------
93Gt 60,000 org miles on car,Check sig in user rides for mods, 12.71@109 on 255BFG DR's CAR weighs 3560 w/me 1.70 60'

06-26-2001, 04:15 PM	#1
MikeBlackGT Registered Member Join Date: Nov 2000 Location: Burnaby,BC,Canada Posts: 14	Which heads with pedistal mount rockers My question is regarding head choice with pedistal mounted rockers, i have crane 1.6 roller rockers and the crane2030cam with 544 lift, i originally wanted the trickflow street heads but have since been told that they use only stud mount rockers, i would like to find the best head and use my pedistal mounts, any opinion or option is apreciated ,thanks in advance(would prefer an aluminum head) ------------------ 93Gt 60,000 org miles on car,Check sig in user rides for mods, 12.71@109 on 255BFG DR's CAR weighs 3560 w/me 1.70 60'

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06-26-2001, 05:45 PM	#2
TJR Registered Member Join Date: Apr 2001 Location: Bowling Green, OH Posts: 270	I've never used any of these heads, but I would go with: 1. Brodix ST 5.0 2. GT-40X 3. Holley 4. Edlebrock Performer Just my opinion....I doubt there is much difference between them. BTW, that cam might be a bit big, what does everyone else think? ------------------ 1989 lx notch 89,000 miles bolt-ons,stock heads/cam 60'- 2.07, 8.90@78, 13.93@99

06-26-2001, 09:44 PM	#3
cojonepony Registered Member Join Date: Feb 2000 Posts: 132	If your wallet's fat enough I would say get AFR's without a doubt. They put up similar flow #'s in comparison with twisted wedge heads, but they have smaller runners and valves which means good velocity and torquey performance on a street motor.

06-26-2001, 11:12 PM	#4
TJR Registered Member Join Date: Apr 2001 Location: Bowling Green, OH Posts: 270	I forgot about the AFRs. I'd put them at the top of that list, but figure on paying $1400. Also, some people have had problems with the rocker arm bolts being too long on the pedistal mount versions. The bolts are threading in all the way to the bottom of the pedistal, before the rocker is even set to zero lash. They might call for longer than stock pushrods. ------------------ 1989 lx notch 89,000 miles bolt-ons,stock heads/cam 60'- 2.07, 8.90@78, 13.93@99

06-27-2001, 12:02 AM	#5
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	cant complain about my ped mount AFR's.. ------------------ 84 convt,'95 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.85@102.5 and a '68 stang that WAS nasty ;-)

06-27-2001, 01:51 AM	#6
MikeBlackGT Registered Member Join Date: Nov 2000 Location: Burnaby,BC,Canada Posts: 14	Thanks for the advice guys was thinking about the afr's anyway,but i think i'll go for them for sure, i have longer pushrods already, stock ones were about 15thou to short ,so i put in some comp cam 6.400,s with shims and the work great, will the afr heads be ok, with the big lift cam i have?544/533lift

06-27-2001, 02:10 AM	#7
n8s_stang Registered Member Join Date: Aug 2000 Location: Delta BC Canada Posts: 4	Mike, just be sure to ask AFR what the springs that come with the heads are good to lift wise. I doubt they will be good to that amount of lift, so you might have to get them to upgrade the springs. PS. I'm in North Delta

06-27-2001, 03:43 PM	#8
MikeBlackGT Registered Member Join Date: Nov 2000 Location: Burnaby,BC,Canada Posts: 14	Thanks N8 i'll be sure to ask them about the springs,i didn't even think about that, anyway r u going to mission on friday i'll be testing out my new combo with the cam,rockers ect... i just put in,wanted to see what kind of performance the cam ect made with stock heads before i get the afr's ------------------ 93Gt 60,000 org miles on car,Check sig in user rides for mods, 12.71@109 on 255BFG DR's CAR weighs 3560 w/me 1.70 60'