1.7 ratio rockers and e303 cam twisted heads

backspa · September 27th, 2009, 12:18 AM

I am just wondering about valve clearance. i am looking at a set of twisted heads with 1.7 ratio rockers. I have had the engine rebuilt with an e303 cam.

Bullitt95 · September 27th, 2009, 01:04 AM

PTV is going to be very tight with TFS heads and 0.529" of valve lift from the E cam/1.7 rocker combo, so you'll definitely need to check it.

smott · September 29th, 2009, 12:29 AM

Originally Posted by backspa

I am just wondering about valve clearance. i am looking at a set of twisted heads with 1.7 ratio rockers. I have had the engine rebuilt with an e303 cam.

First mistake was going with the e cam, but i think it's gonna be really tight if it doesnt hit.

sketto101 · October 3rd, 2009, 09:14 AM

the e cam isnt a .529 lift its like a .498

2002BLGT · October 3rd, 2009, 10:15 AM

Originally Posted by sketto101

the e cam isnt a .529 lift its like a .498

with 1.7 rockers it is , only way to know for sure is to clay the piston and measure it , but I would say its probably NOT going to clear from my experience

backspa · October 10th, 2009, 06:37 PM

Thank you gentleman, i ended up getting edlbrock heads with 1.7 rockers...

Traidmarx · October 10th, 2009, 09:52 PM

so you should still check the ptv clearance.

September 27th, 2009, 12:18 AM	#1
backspa Newbie Join Date: Sep 2009 Posts: 3 iTrader: 0 reviews	1.7 ratio rockers and e303 cam twisted heads I am just wondering about valve clearance. i am looking at a set of twisted heads with 1.7 ratio rockers. I have had the engine rebuilt with an e303 cam.

September 27th, 2009, 01:04 AM	#2
Bullitt95 Hardcore Enthusiast 1995 Mustang GT auto 13.546 @ 105.32 Join Date: Apr 2007 Location: Al Ain, UAE Posts: 1,452 iTrader: 0 reviews	PTV is going to be very tight with TFS heads and 0.529" of valve lift from the E cam/1.7 rocker combo, so you'll definitely need to check it. __________________ 243.5rwhp/284.2rwtq Mod list in My Garage

October 10th, 2009, 09:52 PM	#7
Traidmarx Hardcore Enthusiast 1995 Mustang GT SLOWER THAN OLD PEOPLE FUCK..:-( Join Date: Aug 2008 Location: Roanoke,VA Posts: 2,075 iTrader: 0 reviews	so you should still check the ptv clearance. __________________ 1995 Mustang GT..4.30's,BBK Longtubes, Off Road X-Pipe,Magnaflow Catback,BBK Intake,BBK Underdrive Pulleys Walbro 255lph pump,accel dizzy,MSD Coil,MSD 8.5 Super Conductors,front sway bar removed, more coming soon.

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October 3rd, 2009, 09:14 AM	#4
sketto101 Newbie 1999 Mustang 3.8 lt. Join Date: Aug 2007 Location: alex, ohio Posts: 42 iTrader: 0 reviews	the e cam isnt a .529 lift its like a .498

October 10th, 2009, 06:37 PM	#6
backspa Newbie Join Date: Sep 2009 Posts: 3 iTrader: 0 reviews	Thank you gentleman, i ended up getting edlbrock heads with 1.7 rockers...

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