Trick Flow heads
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Registered User
Joined: Mar 2002
Posts: 4,827
From: Waynesboro, PA
Trick Flow heads
Anyone in here running these on an FI application yet and get some numbers or track times??? I'm curious to see how these are going to work out seeing as how I'm sitting on a set of bare castings right now.
Registered User
Joined: Dec 2004
Posts: 155
From: BRONX , NY
Re: Trick Flow heads
I Have Them On My 383. I Also Had Bare Casting Sent To Le He Ported And Did A Three Angle Valve Job Flowed Just Shy Of 300cfm Intake And 220 Exhaust. No Track Times Yet I Built Engine Low Compression But Dont Have Money For My Super Charger Yet. But Car Runs Strong
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Joined: Apr 2003
Posts: 1,056
From: Marietta, GA
Re: Trick Flow heads
Originally Posted by ProchargedLT1
What bolts did everyone use with the TFS heads? Do you have to use a 12pt or can you use a hex head? Im just wondering because I thought I heard you had to use the 12pt.
Registered User
Joined: Aug 2001
Posts: 252
From: wilmington, NC USA
Re: Trick Flow heads
I have them bolted up to my motor and used the ARP3601 bolts hex head with no problems on a 1.460" spring with cups underneath and no issues, one thing I noticed on them is that the exhaust port bolt holes are for the standard port SBC header flange where the LTx heads have the bolt hole a little lower, so if you are running headers for LTx motors you will have a ridge where the header flange seats against the head on the bottom of the port floor, this needs to be addressed to gain benefits of the exhaust port flow, if you simply bolted everything up you wouldn't notice, but since I was fabbing up turbo manifolds it was one of the first things I noticed.
other then that, I got the bare castings and fitted them with my own parts, I was very impressed with these heads as the finish and castings were clean, port alignment was right on the money unlike the stock GM manufactured heads, the bolt pockets were perfect and make for a nice fit with the ARM washers. thicker deck, nicely machined oil returns compared to AFR castings, accessory holes were all chamferd and tapped. if F-bodies run a cylinder head temp sensor, you will need a reducer from 1/2" NPT to 3/8" NPT for it to fit which I got a brass reducer from lowes plumbing department for $2.37 fits perfect now. and a 1/2" NPT plug for the other head.
I feel these heads are a superior deal for FI with their 62cc chambers, helps drop CR a bit, the chamber redesign is great, they moved the plug location a little closer to the center and added some more of a kidney shape for better flame propogation, the intake valve is unshrouded a little more then on LTx heads and it comes standard with 2.02/1.60 valve seats. great deal!
Chris
other then that, I got the bare castings and fitted them with my own parts, I was very impressed with these heads as the finish and castings were clean, port alignment was right on the money unlike the stock GM manufactured heads, the bolt pockets were perfect and make for a nice fit with the ARM washers. thicker deck, nicely machined oil returns compared to AFR castings, accessory holes were all chamferd and tapped. if F-bodies run a cylinder head temp sensor, you will need a reducer from 1/2" NPT to 3/8" NPT for it to fit which I got a brass reducer from lowes plumbing department for $2.37 fits perfect now. and a 1/2" NPT plug for the other head.
I feel these heads are a superior deal for FI with their 62cc chambers, helps drop CR a bit, the chamber redesign is great, they moved the plug location a little closer to the center and added some more of a kidney shape for better flame propogation, the intake valve is unshrouded a little more then on LTx heads and it comes standard with 2.02/1.60 valve seats. great deal!
Chris
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Joined: Jan 2003
Posts: 505
From: Sweden
Re: Trick Flow heads
Originally Posted by NC-LT1
one thing I noticed on them is that the exhaust port bolt holes are for the standard port SBC header flange where the LTx heads have the bolt hole a little lower, so if you are running headers for LTx motors you will have a ridge where the header flange seats against the head on the bottom of the port floor Chris
The "ridge" wasent really a big problem for us, just had to grind little in the SLP headers.
http://home.koping.net/u3243a/vinter...5/DSC02374.JPG 1 7/8" shouldny hurt...
http://home.koping.net/u3243a/vinter...5/DSC02236.JPG
Thread Starter
Registered User
Joined: Mar 2002
Posts: 4,827
From: Waynesboro, PA
Re: Trick Flow heads
Originally Posted by NC-LT1
I have them bolted up to my motor and used the ARP3601 bolts hex head with no problems on a 1.460" spring with cups underneath and no issues, one thing I noticed on them is that the exhaust port bolt holes are for the standard port SBC header flange where the LTx heads have the bolt hole a little lower, so if you are running headers for LTx motors you will have a ridge where the header flange seats against the head on the bottom of the port floor, this needs to be addressed to gain benefits of the exhaust port flow, if you simply bolted everything up you wouldn't notice, but since I was fabbing up turbo manifolds it was one of the first things I noticed.
other then that, I got the bare castings and fitted them with my own parts, I was very impressed with these heads as the finish and castings were clean, port alignment was right on the money unlike the stock GM manufactured heads, the bolt pockets were perfect and make for a nice fit with the ARM washers. thicker deck, nicely machined oil returns compared to AFR castings, accessory holes were all chamferd and tapped. if F-bodies run a cylinder head temp sensor, you will need a reducer from 1/2" NPT to 3/8" NPT for it to fit which I got a brass reducer from lowes plumbing department for $2.37 fits perfect now. and a 1/2" NPT plug for the other head.
I feel these heads are a superior deal for FI with their 62cc chambers, helps drop CR a bit, the chamber redesign is great, they moved the plug location a little closer to the center and added some more of a kidney shape for better flame propogation, the intake valve is unshrouded a little more then on LTx heads and it comes standard with 2.02/1.60 valve seats. great deal!
Chris
other then that, I got the bare castings and fitted them with my own parts, I was very impressed with these heads as the finish and castings were clean, port alignment was right on the money unlike the stock GM manufactured heads, the bolt pockets were perfect and make for a nice fit with the ARM washers. thicker deck, nicely machined oil returns compared to AFR castings, accessory holes were all chamferd and tapped. if F-bodies run a cylinder head temp sensor, you will need a reducer from 1/2" NPT to 3/8" NPT for it to fit which I got a brass reducer from lowes plumbing department for $2.37 fits perfect now. and a 1/2" NPT plug for the other head.
I feel these heads are a superior deal for FI with their 62cc chambers, helps drop CR a bit, the chamber redesign is great, they moved the plug location a little closer to the center and added some more of a kidney shape for better flame propogation, the intake valve is unshrouded a little more then on LTx heads and it comes standard with 2.02/1.60 valve seats. great deal!
Chris
Outstanding info man!!! I was looking at my castings and initially thought "That coolant temp sending unit hole sure looks big....."
Question for ya: How's the alignment of the pushrod holes??? Everything work out OK there???