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View Full Version : valve and Piston-not a good relationship



LXguy88
09-29-2007, 02:03 AM
I'm putting the 347 together still, now i;m kinda in a pickle. I went to summit today to pick up parts and talked to the mustang chick i always deal with (holly, she knows her stangs) My set-up is DSS 347 with -3cc flat top, gt-40x heads, trick flow stage 2 cam, and 1.6 FRPP roller rockers. I'm gonna check piston to valve clearance but i was wanting to know if anyone is running this cam and if they had any clearance problems.

fastfox91
09-29-2007, 06:28 AM
that cam will clear all day with those heads, pistons and cam u could clear a stage 3 if u wanted to however e
its always good to check p to v just to be safe though

mlowry1260
09-29-2007, 10:16 AM
that cam will clear all day with those heads, pistons and cam u could clear a stage 3 if u wanted to however e
its always good to check p to v just to be safe though

I'd agree it Should clear. Take the time & do a clay test. Do you have a solid converted HR lifter?

LXguy88
09-29-2007, 10:42 AM
hyd. roller

mlowry1260
09-29-2007, 11:00 AM
Most aftermarket pistons have larger valve notches to allow larger valves & higher lift/duration cams. Take your time & do the test.

Rodeheaver's
09-29-2007, 01:09 PM
the dss short block should have piston notches for 2.05 valves, so yes yours should deff clear, i have used there stuff with 700lift cams and vr junior heads(2.05 valve) and have had enough clearance with .0045 head gasket..

Pure Stock
09-29-2007, 05:13 PM
Daily driver?

LXguy88
09-29-2007, 06:16 PM
yes. more or less a nice day car but thats what it was bought as. I checked it today and came up with about .200 clearance. I had to buy guide plates but now i have to send the heads out to have the pedestals machined the thickness of the plate.