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Cam position relative to lifter bore #3110381 01/09/23 04:30 PM 01/09/23 04:30 PM
Joined: Mar 2005 Posts: 1,581 N/E, Michigan RATTRAP OP pro stock
RATTRAP OP pro stock Joined: Mar 2005 Posts: 1,581 N/E, Michigan	Is there a way to move the cam fwd in the block to get the cam lobes lined up center to the lifter bores? My cam looks like it needs to go about .125 to .25 fwd to line the lobes with the lifter bores

Re: Cam position relative to lifter bore [Re: RATTRAP] #3110384 01/09/23 04:42 PM 01/09/23 04:42 PM
Joined: Sep 2014 Posts: 4,457 Washington M madscientist master
madscientist master M Joined: Sep 2014 Posts: 4,457 Washington	Originally Posted by RATTRAP Is there a way to move the cam fwd in the block to get the cam lobes lined up center to the lifter bores? My cam looks like it needs to go about .125 to .25 fwd to line the lobes with the lifter bores If it’s a flat tappet cam they can’t be lined up. If it’s a roller then yes, they should be centered. Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston

Re: Cam position relative to lifter bore [Re: madscientist] #3110479 01/10/23 12:11 AM 01/10/23 12:11 AM
Joined: May 2019 Posts: 712 Lake Villa Il INTMD8 super stock
INTMD8 super stock Joined: May 2019 Posts: 712 Lake Villa Il	If you do this, check timing set gear alignment. I guess do it anyway. I needed to shim my crank sprocket for timing set in order to align with cam timing gear. 69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700

Re: Cam position relative to lifter bore [Re: INTMD8] #3110514 01/10/23 09:22 AM 01/10/23 09:22 AM
Joined: Jun 2016 Posts: 906 Washington H hemienvy super stock
hemienvy super stock H Joined: Jun 2016 Posts: 906 Washington	I thought flat tappet lifters were offset from the lobe centerline to make them spin.

Re: Cam position relative to lifter bore [Re: hemienvy] #3110516 01/10/23 09:44 AM 01/10/23 09:44 AM
Joined: Oct 2005 Posts: 8,867 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,867 Ontario, Canada	Originally Posted by hemienvy I thought flat tappet lifters were offset from the lobe centerline to make them spin. Nope. The bevel on the lobes and the convex face of the lifter are what do that.

Re: Cam position relative to lifter bore [Re: RATTRAP] #3110517 01/10/23 09:53 AM 01/10/23 09:53 AM
Joined: Oct 2005 Posts: 8,867 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,867 Ontario, Canada	Originally Posted by RATTRAP My cam looks like it needs to go about .125 to .25 fwd to line the lobes with the lifter bores The key words here are "looks like". Moving the cam either way will move the oil feed holes in the cam relative to the ones in the cam journal decreasing or cutting off oil to the top end. It will move the oil pump drive gear contact point. And then there's the timing set which will probably now hit the cover and possibly not allow the balancer to properly seat which will change all your pulley alignment. Why don't you take your issue to the right place ... the cam manufacturer !!

Re: Cam position relative to lifter bore [Re: Stanton] #3110529 01/10/23 10:36 AM 01/10/23 10:36 AM
Joined: Mar 2005 Posts: 1,581 N/E, Michigan RATTRAP OP pro stock
RATTRAP OP pro stock Joined: Mar 2005 Posts: 1,581 N/E, Michigan	Originally Posted by Stanton Originally Posted by RATTRAP My cam looks like it needs to go about .125 to .25 fwd to line the lobes with the lifter bores The key words here are "looks like". Moving the cam either way will move the oil feed holes in the cam relative to the ones in the cam journal decreasing or cutting off oil to the top end. It will move the oil pump drive gear contact point. And then there's the timing set which will probably now hit the cover and possibly not allow the balancer to properly seat which will change all your pulley alignment. Why don't you take your issue to the right place ... the cam manufacturer !! You bring up some very good points, I will do some more measurement's before I go after the cam manufacturer, could be the lifter bores in the block were drilled incorrect.

Re: Cam position relative to lifter bore [Re: RATTRAP] #3110589 01/10/23 02:07 PM 01/10/23 02:07 PM
Joined: Jan 2003 Posts: 19,361 Las Vegas Al_Alguire I Live Here
Al_Alguire I Live Here Joined: Jan 2003 Posts: 19,361 Las Vegas	What block is it? "I am not ashamed to confess I am ignorant of what I do not know." "It's never wrong to do the right thing"

Re: Cam position relative to lifter bore [Re: Al_Alguire] #3110747 01/11/23 07:50 AM 01/11/23 07:50 AM
Joined: Mar 2005 Posts: 1,581 N/E, Michigan RATTRAP OP pro stock
RATTRAP OP pro stock Joined: Mar 2005 Posts: 1,581 N/E, Michigan	Originally Posted by Al_Alguire What block is it? KB Alum 426

Re: Cam position relative to lifter bore [Re: RATTRAP] #3110905 01/11/23 04:56 PM 01/11/23 04:56 PM
Joined: Jan 2003 Posts: 19,361 Las Vegas Al_Alguire I Live Here
Al_Alguire I Live Here Joined: Jan 2003 Posts: 19,361 Las Vegas	So my next question is it a new or older version "I am not ashamed to confess I am ignorant of what I do not know." "It's never wrong to do the right thing"

Re: Cam position relative to lifter bore [Re: Al_Alguire] #3111159 01/12/23 12:58 PM 01/12/23 12:58 PM
Joined: Mar 2005 Posts: 1,581 N/E, Michigan RATTRAP OP pro stock
RATTRAP OP pro stock Joined: Mar 2005 Posts: 1,581 N/E, Michigan	Originally Posted by Al_Alguire So my next question is it a new or older version this is a 2012 alum block from KB Last edited by RATTRAP; 01/12/23 12:59 PM.

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