ls7 lifters in 4.3?
#1
08-18-2011 | 09:59 PM
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ls7 lifters in 4.3?
I have a chance to pick up a set of ls7 roller lifters from a 2009 z06 vette, will they fit in a 97 4.3? if so what else would i have to change?
#2
08-19-2011 | 01:35 AM
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Joined: Jan 2010
Posts: 193
From: pa
hmm thats is a good question, im gonna take a edemacated guess "lol", and im gonna say yes because most sbc internals are interchangable. like pistons main & rod bearings etc etc. ill see if i can find some specs on the 2 lifters to double check.
#3
08-31-2011 | 02:43 PM
Beginning Member
Joined: Nov 2010
Posts: 46
From: Surrey, BC, Canada
lt1 guys run em so im assuming they will work for you.
#4
08-31-2011 | 11:42 PM
BF Veteran
Joined: Oct 2007
Posts: 2,797
From: In the Colorado mountains
Not a clue, but LS's and 4.3's are WORLDS apart.
#5
09-01-2011 | 11:35 AM
Super Member
Joined: Jan 2008
Posts: 1,631
From: Grand Rapids, Michigan
Im not sure if they would work or not but i dont see how they would make any difference performance wise. The factory lifters in the vortec 4.3 are rollers
#6
09-01-2011 | 12:43 PM
Beginning Member
Joined: Nov 2010
Posts: 46
From: Surrey, BC, Canada
if you can use sbc and lt1 lifters in 4.3's then you should be able to use ls7 lifters. good for replacing stock ones, less chance of valve float at high rpm's, not like 4.3's rev very high. i believe the ls7 lifters are now stock replacements for lt1's.
#7
09-02-2011 | 12:21 AM
Senior Member
Joined: Oct 2009
Posts: 608
From: Ohio
What is your goal here? Are you having problems?
#8
09-02-2011 | 06:29 PM
why not just grab up the entire motor and do a complete swap?
#9
09-02-2011 | 06:44 PM
New Member
Joined: Jun 2011
Posts: 58
From: Vernon BC, Canada
+1 Why? Roller lifters = roller cam = different pushrods................IIRC
If it ain't broke, don't fix it.
Aaron
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