anyone using those type of heads are they really as good as what they are advertised also what camshafts ,roller rockers are you running with those particular heads?

 

You'll get a lot of different opinions on them. I've had the TW G1's for 5+ years now. I broke most of the springs, but they've solved that problem for new units. I'd say they are a good value. Currently, I'm using the center bolt heads, with Crane Gold 1.5s and an LT4 Hot cam. My headers are the Edelcrock TES's. No clearance issues with the plugs.

 

I bought a set of TF heads but I am still waiting to install them. I picked up a set of centerbolt 50 state legal ones for $835 from www.jdsperformance.com and I said I could not see spending anoher 700 for AFR's

 

Trick Flows turn out decent flow numbers but their major shortcoming is a lack of swirl. People don't usually mention swirl because it can't really be quantified.

Just for a second let's say AFR's and Trick Flow's have identical Flow numbers, identical runner volumes, yet AFR's make more power. This difference is the swirl factor and the revised cooling passages of the AFR heads, not to mention the CNC porting and blending of the bowl and throat area, and the runners ... an operation which can eliminate the detrimental effects of core shift.

Also, "You get what you pay for."

 

Do a search and you will find TONs of info on TFS heads - Twisted Wedge and 23*....

hint: Go here for some info on the 23* ones:

https://www.thirdgen.org/techbb2/sho...threadid=48225

 

I have the centerbolt ones on my car, with a LPE 213 SuperRam cam with 224/234* of duration. IM using a cheap set of proform roller rockers, they fit under the stock valvecovers with no problems.

IM happy with them I would buy them again.

 

INTERESTING OPINIONS IM NOT SURE WHAT HEADS TO SETTLE FOR BUT I CAN ONLY OPT FOR THE PRE 87 HEADS BECAUSE OF MY EARLY INTAKE UNFORTUNATELY CANT THROW A SET OF VORTECS ON BUT DEFINETLY HAVE TO GET RID OF MY CURRENT HEADS AS THEY CAN ONLY MAKE 150-180HP GUTLESS TO SAY THE LEAST ANY OTHER SUGGESTIONS ON ANOTHER BRAND OF HIGH STREET PERFORMANCE HEADS FOR PRE 87?

 

You really don't need specifically pre-87 heads. You can just get a drill bit and elongate the holes on the intake manifold.

 

there are drilled and tapped vortech heads made to accept pre 86 manifolds, their like $70 more than the regular ones . scroggin dickey sells them i believe. you could also go to the other now cheaper, old standby stock performance heads, camel humps (which contrary to popular belief you can still buy them new from chevy) , or one of the other 4 or 5 hi.po. castings. practice how to port on some junk heads and your good to go.

 

thanks for your opinions but as i said im definetly throwing away those carby heads as for what brand i will opt will depend on the availability here in Australia i know trickflow are reasonably priced so maybe thats the go

 

Hey Pete, do Australian chicks dig American dudes? That's the rumor over here ... that and hoe Germans love David Hasselhoff