Alright f-body gods I have a question for ya. I have an 83 camaro with a 350. The motor has comp cam 270 series cam, stealth intake, headers, edlebrock 600cfm elec. choke carb and cast iron heads with 1.94 manley valves. The problem I have is the motor combo should be pretty good, but I dont seem to get the perf. I am after. Should I concentrate on tuning or should I go with different heads? I am looking at the trickflow heads. I have a stock bottom end. The heads are non-ported. Thanks in advanced. I can put the stuff together but I lack the tuning knowledge. Jered 1983 SS Camaro. www.geocities.com/smokntires

 

I would buy heads. I wouldn't buy trick flows. At best they are decent. The price is right though. I would but you gain 40 hp with some better heads.

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1991 Firebird
350 L98 (was a 305 TBI),T-5,Edelbrock TES and cat back,Accel manifold
NOS,subframes,jegster torque arm,MSD Digital 6
AFPR,Lakewood lcas
Hurst linelock,SLP cam (206 212 .480 .486),relocated battery,cold air,Hypertech chip,centerforce df,clutch
poly bushings and mounts
AFR 190s
Harland sharp 1.5 rockers
autopower rollbar

12.33 @ 114.83 juiced uncorrected

13.510 @ 102 non juiced uncorrected

 

I like my trick flows. The best heads are the AFR's but they are not worth the extra almost 600 bucks.

 

ok so trick flows are decent, would port work ie. pocket porting help? What heads would you suggest? Perf. RPM? I really think the heads are holding the car back. Thanks your help. Jered 1983SS

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save your lungs smoke an import!

 

Actually, CHP did an article here a while back comparing tons of SBC heads. The TFS Twisted Wedge G2 heads outflowed the AFR 195's on the intake side by a marginal amount, the TFS's really shine on the exhaust side. AFR's are good heads, don't get me wrong, but you do pay for the name. I personally have the G2's and think they kick *** , the proof is in the MPH. My 355 makes over 500hp with off the shelf parts. I think the heads have quite a bit to do with it. As far as porting them, when I talked to trickflow, they said the heads come from the factory with a little seat work. He said that a little short side radius work could help them.

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Black 89 IROC...355, Solid Crower Cam, TFS heads.
12.0 @ 120.7mph with a 2.0 60ft...all motor...no traction

 

Hmmm, so you went with the G2's; but how is your piston to valve clearance? Did you have to get the trick flow pistons that are cut to clear the valve angle on the g2's??? I have the 23deg trick flows- I wanted to go with the g2's but was worried about the clearance.


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86 406

 

Piston to valve was not a problem when I got my motor done..Builder got a 11:1(or12:1) pistons and flycut them to fit the valve arrangement..You can even decide how much clearance you want(excpet the cc volume would change..I think)

Daz

 

Flow is not everything.

Even though I am against trick flow heads how can I argue with that mph? Pump gas?

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1991 Firebird
350 L98 (was a 305 TBI),T-5,Edelbrock TES and cat back,Accel manifold
NOS,subframes,jegster torque arm,MSD Digital 6
AFPR,Lakewood lcas
Hurst linelock,SLP cam (206 212 .480 .486),relocated battery,cold air,Hypertech chip,centerforce df,clutch
poly bushings and mounts
AFR 190s
Harland sharp 1.5 rockers
autopower rollbar

12.33 @ 114.83 juiced uncorrected

13.510 @ 102 non juiced uncorrected

 

What about a pair of ported vortec heads?

 

You can run up to a .510 lift on the intake side and quite a bit higher on the exhaust side with regular pistons. My cam is .545/.565, so I had to have my pistons flycut on the intake side only. They are really good heads but everyone hear's horror stories about pistons. It only cost me $80 to get mine cut.
Yes, I run it on pump gas, it has around 10.5:1 compression. That was also on BFG Drag Radials.


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Black 89 IROC...355, Solid Crower Cam, TFS heads.
12.0 @ 120.7mph with a 2.0 60ft...all motor...no traction

 

I would be a little leary of the tws heads. I purchase a set for my 87vett. I will say that they performed AWSOME! I purchased the G2 heads with the bronze valve guides. The valve guides had to be replaced after 7K miles! I had a geometry checker type tool to make sure the geometry was correct and it was. I called summit a few days ago checking on the 23deg trickflows and asked why the no longer carried the tws heads for 87 and up L98's? The sales person stated that they were not big movers due to the valve guide problem's. I will say that They worked Awsome. Right now, i'm waiting for my AFR's? If ya want, I have a line on them and can send you a link to get a really good price on them? Goood luck

 

thanks for the info guys. I dont know what is so awesome about the AFR's I dont know really anything about them. But yeah, craiger
if you can get me the info on them that would be really cool. Like I said before I am new to the head game so any help or advice is greatly appreciated. Thanks Jered 1983SS

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save your lungs smoke an import!