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MAX LOBE LIFT IN SB #1041174 07/27/11 08:18 AM 07/27/11 08:18 AM
Joined: Nov 2006 Posts: 370 Queensland Australia M moparmacka OP enthusiast
moparmacka OP enthusiast M Joined: Nov 2006 Posts: 370 Queensland Australia	What is the general rule of thumb for max lobe lift in a 59 deg 340 Resto block without uncovering the oil galleries? Running Comp 8043-16 roller lifters.....

Re: MAX LOBE LIFT IN SB [Re: moparmacka] #1041175 07/28/11 04:24 AM 07/28/11 04:24 AM
Joined: Nov 2006 Posts: 370 Queensland Australia M moparmacka OP enthusiast
moparmacka OP enthusiast M Joined: Nov 2006 Posts: 370 Queensland Australia

Re: MAX LOBE LIFT IN SB [Re: moparmacka] #1041176 07/28/11 06:53 AM 07/28/11 06:53 AM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	I understand this was one of the features designed into the 8043 lifter but, nobody is going to be able to give an absolute number. I've heard .430" lobe lift but, with the way the 59� oil galleys are machined, it's too unreliable to guess. Bushing the block is still the best way to approach it...............except a 48� block.

Re: MAX LOBE LIFT IN SB [Re: S/ST 3040] #1041177 07/28/11 07:30 AM 07/28/11 07:30 AM
Joined: Nov 2006 Posts: 370 Queensland Australia M moparmacka OP enthusiast
moparmacka OP enthusiast M Joined: Nov 2006 Posts: 370 Queensland Australia	I was mainly looking at the possibility of around the .390" - .400" region without bushing the bores.

Re: MAX LOBE LIFT IN SB [Re: moparmacka] #1041178 07/28/11 09:38 AM 07/28/11 09:38 AM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	You will obviously want to check it while priming the engine but, .400" lobe should work with the 8043.

Re: MAX LOBE LIFT IN SB [Re: moparmacka] #1041179 07/28/11 02:39 PM 07/28/11 02:39 PM
Joined: Aug 2003 Posts: 43,240 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,240 Bend,OR USA	Quote: I was mainly looking at the possibility of around the .390" - .400" region without bushing the bores. How about tubing the block? Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: MAX LOBE LIFT IN SB [Re: Cab_Burge] #1041180 07/28/11 05:51 PM 07/28/11 05:51 PM
Joined: Nov 2006 Posts: 370 Queensland Australia M moparmacka OP enthusiast
moparmacka OP enthusiast M Joined: Nov 2006 Posts: 370 Queensland Australia	Are you thinking tubing the block and using a different style lifter as the 8043 lifter requires pressure fed oil to feed the axles and for pushrod oiling......

Re: MAX LOBE LIFT IN SB [Re: moparmacka] #1041181 07/28/11 08:12 PM 07/28/11 08:12 PM
Joined: Jan 2003 Posts: 6,147 Melbourne , Australia LA360 master
LA360 master Joined: Jan 2003 Posts: 6,147 Melbourne , Australia	I always thought you had to bush the lifter bores to pushrod oil? Alan Jones

Re: MAX LOBE LIFT IN SB [Re: LA360] #1041182 07/28/11 08:25 PM 07/28/11 08:25 PM
Joined: Aug 2003 Posts: 11,179 Atco NJ DJVCuda I Live Here
DJVCuda I Live Here Joined: Aug 2003 Posts: 11,179 Atco NJ	Quote: Are you thinking tubing the block and using a different style lifter as the 8043 lifter requires pressure fed oil to feed the axles and for pushrod oiling...... I have a tubed block and , while the axles will not get pressured oil, they will still work - just like the 828 lifters without the oil holes Quote: I always thought you had to bush the lifter bores to pushrod oil? no you can tube the block, bush the block or leave it - you will have to drill holes in the tubes / bushings to pushrod oil.

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