trick flow heads
Le Mans Master
Joined: Nov 2008
Posts: 5,691
Likes: 12
From: columbus oh
heads
we used a set of trick flow "twisted wedge" heads on a 350 rebuild 10 years ago on a friends 77 4 speed car with great results. he has over 80,000 on the re build and drives it to fla. and back every year from central ohio. this was done to mimic the big block semi-hemi heads and it is one of the strongest small blocks i have ever driven. i don't know if they still make this version or not because of problems they had with folks ignoring rocker arm geometry . we had to go .100 longer on the pushrods. also had to slightly take a die grinder to the flange plate on the tubular headers because of the angled spark plugs, stock exhaust manifolds are probably ok. trick flow is still in business and owned by summit speed equipment. .......very good quality imo.......
Last edited by midyearvette; Dec 8, 2008 at 11:19 PM. Reason: i forgot about tubular header flange modification
Race Director
Joined: Mar 2001
Posts: 14,634
Likes: 4,684
From: Mustang OK
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I have a set that I SERIOUSLY need to get rid of!!!!!!!!!!!!
Original box, papers, and SPECIAL head bolts. Drilled steam holes for a SB400 (I bought them that way). Even a set of GOOD spark plugs thrown in.
Original box, papers, and SPECIAL head bolts. Drilled steam holes for a SB400 (I bought them that way). Even a set of GOOD spark plugs thrown in.
Racer
Joined: May 2006
Posts: 306
Likes: 0
From: MO
I'm running a set of the G1 Twisted Wedge trick flows and they run OK for street heads, I wouldn't run them on anything larger than a 350 c.i. engine, as I remember the intake is in the 180 cfm area. Also be aware that the G1 heads need a special rocker arm for the intake valve. These rockers are available from Comp Cams and trying to get a good witness mark on the valve stem without them is an exercise in futility. This adds a bit of money to the cost of the G1 heads because unless Comp Cams has changed they only offered the special rockers in the pro magnum series, of course you only need 8. They corrected this problem on the G2 Twisted Wedge trick flows and the G2's don't need a special length valve stems either (the G1s have a shorter than stock valve stem). I don't believe Trick Flow manufactures the Twisted Wedge series anymore. Also, stock exhaust manifolds will work but you will have to slightly grind the manifold port to match the slightly raised exhaust port of the Trick Flows.
Last edited by dazvet; Dec 9, 2008 at 01:30 AM. Reason: addendum
Pro
Joined: Sep 2008
Posts: 682
Likes: 0
From: Manteo NC
I just bought a set in a Summit top end kit. I got the Strret Bracket for my 350. It comes with the 2.02/1.60 64cc. What do you think of the ones you have/had.
Advanced
Joined: Jan 2002
Posts: 82
Likes: 0
From: Spokane Valley Wa
For the first two years I didn't have any problems at all and they seemed to make good power. I think it must have been metal fatigue since the heads were rated for the cam I was using.
Racer
Joined: May 2006
Posts: 306
Likes: 0
From: MO
Hi OBX2323,
I believe all the current Summit offerings are for Trick Flow 23 degree heads which is a totally different animal than the Twisted Wedge heads. Maybe you knew that and I just misunderstood.
WM - I had the same valve spring problem with the G1 Twisted Wedge heads I bought new but it happened on the first drive. Trick flow had been having problems with the springs (supplier issue according to them) and sent me a new set and that took care of the issue - still running them.
I believe all the current Summit offerings are for Trick Flow 23 degree heads which is a totally different animal than the Twisted Wedge heads. Maybe you knew that and I just misunderstood.
WM - I had the same valve spring problem with the G1 Twisted Wedge heads I bought new but it happened on the first drive. Trick flow had been having problems with the springs (supplier issue according to them) and sent me a new set and that took care of the issue - still running them.
Pro
Joined: Jan 2007
Posts: 524
Likes: 12
From: Auckland New Zealand
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Melting Slicks
Joined: Mar 2004
Posts: 2,965
Likes: 419
From: Melbourne FL
[QUOTE=DZAUTO;1568129635]I have a set that I SERIOUSLY need to get rid of!!!!!!!!!!!!
Original box, papers, and SPECIAL head bolts. Drilled steam holes for a SB400 (I bought them that way). Even a set of GOOD spark plugs thrown in.
PM sent
Original box, papers, and SPECIAL head bolts. Drilled steam holes for a SB400 (I bought them that way). Even a set of GOOD spark plugs thrown in.
PM sent
