TFS Stage 1, 1.6 or 1.7
01-26-2010, 09:36 PM
#1
3rd Gear Member
Thread Starter
Join Date: Mar 2006
Location: Harleysville PA
Posts: 956
TFS Stage 1, 1.6 or 1.7
I posted a little while ago about this but with two cams that were too much for my heads. So I ordered the TFS cam, now should I go with 1.6's or 1.7 roller rockers. Or should I keep my stockers, but I doubt that.
Jay
Jay
01-27-2010, 06:04 PM
#4
2nd Gear Member
Join Date: Nov 2007
Location: san antonio
Posts: 305
why dont u try 1.6 and 1.7..... 1.6 on the intake and 1.7 on the exhuast side.... just a thought? my first set up made 305 rwhp with 69' D0oE heads TFS 1, 1.6 & 1.7 mix matched and a cobra intake.... just my opinion...i still have rocker set up like i did before and works great..
ps dont mind the gold tooth
ps dont mind the gold tooth
Last edited by xxxmustangtxhc; 01-27-2010 at 06:10 PM.
01-27-2010, 08:27 PM
#6
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Join Date: Apr 2009
Location: N.C.
Posts: 1,893
Friends garage had young Marine that was pulling Trick Flow heads off his 332 with stage 2 cam and 1.7 rockers last week. Yup 8 bent exhaust valves. Anyone gets the urge for that I seen what happens. It ain't pretty. He didn't ask anyone just tried.
01-27-2010, 10:09 PM
#7
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Join Date: Mar 2006
Location: Harleysville PA
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Sounds like the time when I had the timing off on my old 4.6 out of my 98. Never rotated it by hand, except I did worse then bend a few valves. I snapped them off, as well as the cam followers, and put a few nice dents a couple of pistons.
01-27-2010, 10:11 PM
#8
5th Gear Member
Join Date: Aug 2004
Location: Arizona
Posts: 4,103
Always,always check piston to valve clearance anytime you are changing any valve-train parts.
Keep at least .100" of clearance and you'll be fine.
Lift of the camshaft has very little to do with p?v clearnace anyway.......
Keep at least .100" of clearance and you'll be fine.
Lift of the camshaft has very little to do with p?v clearnace anyway.......
01-27-2010, 10:15 PM
#9
Banned
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
if you buy a cam with .510 lift... and P heads flow crap over .500... how long do you think the valve is running over .500 lift?
seems to me like, you would want the car to be at or around its peak flow potential, for as long as possible...
01-27-2010, 11:23 PM
#10
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
lift has nothing to do with ptv issues which is essentially what a 1.7 rocker does, your buddy had a mismatch , most strokers if built right for use with tfs heads often run the companion piston for such with the rotated valve reliefs to match the rotated valved head..........if ptv occured it may have been a result of radial ptv, a picture of the piston and valves/damage can determine the root cause as well as an over rev / valve float could of casued damage.
