05-09-2002, 01:49 AM
| #1 (permalink) |
| Registered Member  Join Date: Apr 2002 Location: racine ,wi
Posts: 687
|  TFS heads and stock short block when useing the tfs heads I have heard you have to fly cut the pistons and if not what is the limit to the cam that can be used before you have smack smack smack on the pitons
__________________ RUN IT STAIGHT AND RUN IT HARD on motor ________ 60' 1.66 1/4 12.704 mph 109.4 Novi 2000 60' 1.564(crap) 1/4 11.717 mph 118.53 _________ |
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05-09-2002, 09:14 AM
| #2 (permalink) |
| or '331 LX Eric'  Join Date: Jan 1999 Location: Columbus, Ohio
Posts: 2,142
| Flycutting of the pistons all depends on your total lift, rocker ratio and duration of cam. Remember that big lift cams don't always mean big power, the entire combination has to work together. Check out TFS' site at www.trickflow.com for some good technical information. FWIW, on my old setup, I had used a .480/.480 (w/1.6's) 220/226 with 115 lobe separation with no issues whatsoever. My new engine has custom TFS TW pistons (Probe Industries Sportsman Race Series) so that I'm safe to nearly .650" - way more than I'll ever go. E
__________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60' |
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05-10-2002, 12:43 AM
| #3 (permalink) |
| Registered Member Join Date: Apr 2002 Location: racine ,wi
Posts: 687
| thanks I wll most likely go with 1.6 rockers and a cam from tfs or the e-303 or and anderson motors
__________________ RUN IT STAIGHT AND RUN IT HARD on motor ________ 60' 1.66 1/4 12.704 mph 109.4 Novi 2000 60' 1.564(crap) 1/4 11.717 mph 118.53 _________ |
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05-10-2002, 11:04 AM
| #4 (permalink) |
| or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio
Posts: 2,142
| I've heard good things about the Anderson cams. Rick is a bit secretive about the cam specs (I guess I would be too if I had such success  )Good luck, E
__________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60' |
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05-10-2002, 11:31 AM
| #5 (permalink) |
| Registered Member  Join Date: Apr 2001 Location: San Diego, Ca
Posts: 1,266
|  Total lift on my cam is about 512/514 with 1.6RR on the TW heads. stock pistons, I have no probs but was told it is close and to upgrade pistons before rockers or cam. good luck 
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