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Re: [GMCnet] Cam Timing [message #163793 is a reply to message #163751]

Wed, 21 March 2012 21:16

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma:

Senior Member

Hal,

Cloyes makes a double timing chain set that will allow the cam timing to be
advanced or retarded.

If you advance it the power band will shift downwards by about 300-400 rpm.
The rpm shift is a GUESS!

With a 3.70 FD I reckon I'd install it without advancing it.

That's what I did when I replaced the timing chain in Double Trouble; it has
a 3.21 to 1 FD.

Regards,
Rob M.

-----Original Message-----
From: Hal Kading

Should the cam be timed different than stock for best mileage with the 455?
We have a 3.70 final drive so torque doesn't seem to be lacking. Engine has
120K plus miles so timing chain is past due. What is recommended?

Hal

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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[Message index]

		Cam Timing By: hal kading on Wed, 21 March 2012 13:00
		Re: Cam Timing By: pyolet on Wed, 21 March 2012 17:01
		Re: [GMCnet] Cam Timing By: USAussie on Wed, 21 March 2012 21:16
		Re: [GMCnet] Cam Timing By: Steven Ferguson on Thu, 22 March 2012 06:36
		Re: [GMCnet] Cam Timing By: hal kading on Thu, 22 March 2012 22:42

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