I have some Trick Flow heads for sale. They are for late model SBC engines, 86+. Center bolt valve covers/ They've been ported by Lloyd Elliot of Elliot's Port Works. The heads took my 91 to 11.9 @ 119 MPH and a tick under 400 RWHP. Here's a link to them on summit's website: http://www.summitracing.com/parts/TFS-30400006/ Here's what the performance shop that flowed the heads had to say about them: Hi Josh, They did arrive and I already have a bunch of information for you. First off they are 100% ported. Not just a bowl cleanup like you had alluded to. Guides are narrowed and necked downed nicely and this head had been ported from one end to the other. I might add it was done by someone who looked like they knew what they were doing and had a very neat hand (the walls were straight and the overall execution was certainly above average). The porting might not have been as obvious to you because the heads were glass-beaded when they were freshened disguising some of the finish sandroll marks that are clearly evident when you look closely. Finished intake port volume 205 cc’s Intake Flow .200 @ 140 .300 @ 200 .400 @ 245 .500 @ 274 .550 @ 280 .600 @ 282 Exhaust port finished volume 76 cc’s .200 @ 108 .300 @ 144 .400 @ 176 .500 @ 190 .600 @ 204 Combustion chamber volume is very small @ 57 cc’s (just under actually like 56.8 actually) Here's a couple pictures of them: The heads have about 600 miles on them. Before I installed them, they were flowed, decked, CC'd, and had a 3 angle valve job. I'm removing them because I'm in the middle of a comparison between these heads and some out of the box AFR 195's. For the information on that test, see here: http://www.corvette-guru.com/modules...d=7225&forum=1 $1200 plus shipping. They are off the car and ready to go.

I forgot to mention the valve springs. The springs are from PAC racing, part number 1518. They are the same as the 1218 springs, but they have been nitrided for greater longevity. The max lift they can tolerate is .650, pressures are approximately 130 lbs. closed, 337 open. The springs were installed by Lloyd Elliot, so the installed height and pressures have all been checked and verified.

http://www.pacracing.com/Street_Stri...Set_of_16.html

Still for sale.

I was getting ready to buy these exact heads from Summit when I thought I would check the boards to see if anyone else had them for sale. We coincidence. Anyhow, I am very interested in the heads but am concerned about the combustion chamber size. I have a 1991 Trans Am with a newly rebuilt engine and I am afraid anything less that 62cc would make my compression ratio to high. What are your thoughts? I would love to take the heads off your hands if they will work.

Best Regards,
Josh

You can use and online compression ratio calculator to figure out what your options are.

You'll need to know how far the piston comes up in the cylinder. If the piston is dished or domed, you'll need to to know the volume of the dish/dome. If you post the information, I'll check the numbers for you.

Bump.

It's all in your quench and dynamic compression. If your quench is right and your dynamic is around 8.5 you'll be fine.

Still for sale.

http://cgi.ebay.com/ebaymotors/ws/eB...CA:MOTORS:1123

One day left on E-bay.

you should search lb9 here - i read yesterday that someone here wants a bolt on set.

There is no user here named lb9, but I'll go look around for a thread where someone is looking. Thanks for the tip!