MustangWorks.com : Ford Forums - View Single Post - will flat top pistons hit valves with b303 cam?

NO SLO PK · 04-10-2001, 05:50 PM

The B is a mild lift cam (.480) but it really depends on a lot of things like the heads you are using and the valve sizes. Were reliefs cut in the new flat tops? What is the deck height of the pistons at TDC? Are you advancing or retarding the cam? I guess what I'm saying is that there are a lot of variables with a custom built engine and it's best to check the P/V clearance with clay to know for sure. I wouldn't leave it to chance.

------------------
Russ L
'91 LX
Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.

[This message has been edited by NO SLO PK (edited 04-10-2001).]

04-10-2001, 05:50 PM	#2
NO SLO PK Registered Member Join Date: Mar 1999 Location: Arcadia, CA, USA Posts: 731	The B is a mild lift cam (.480) but it really depends on a lot of things like the heads you are using and the valve sizes. Were reliefs cut in the new flat tops? What is the deck height of the pistons at TDC? Are you advancing or retarding the cam? I guess what I'm saying is that there are a lot of variables with a custom built engine and it's best to check the P/V clearance with clay to know for sure. I wouldn't leave it to chance. ------------------ Russ L '91 LX Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles. [This message has been edited by NO SLO PK (edited 04-10-2001).]