Engine build and questions
Engine build and questions Ls1 block, stock bore
-pistons:
http://www.coasthigh.com/Chevy-LS-5-...ns-p/14217.htm
-rods:
SCAT 4340 H-beam Connecting Rods - 6.100" Length
8740 ARP connecting Rod Bolts
Full Floating Pins
-Assembly is balanced
Heads:
-LS6 243 heads with 26921 Dual comp cam valve springs
-Cam:
54-428-11 XFI RPM High Lift
http://www.compcams.com/Company/CC/c...csid=1091&sb=0
-Rocker Arm upgrade:
1.72 Ultra Gold
http://www.compperformancegroupstore...de=GEN3Rockers
-Hi-Tech pushrods:
http://www.compperformancegroupstore...e=GEN3Pushrods
-Short lift Lifters:
http://www.compperformancegroupstore...ct_Code=875-16
I've checked the oil clearances on the main bearings and the rod bearings. Being after market arp bolts and scat rods, does anyone know the torque specs on these bolts?
What is the clearance needed between the two rods on the same journal and between the side of the rods and the crank?
Does anyone have a good link to show installation of cam and lifters? I have never done this before and want to be sure I am doing it properly.
That is it for the moment. I am sure I will have more concerns as the build progresses.
-pistons:
http://www.coasthigh.com/Chevy-LS-5-...ns-p/14217.htm
-rods:
SCAT 4340 H-beam Connecting Rods - 6.100" Length
8740 ARP connecting Rod Bolts
Full Floating Pins
-Assembly is balanced
Heads:
-LS6 243 heads with 26921 Dual comp cam valve springs
-Cam:
54-428-11 XFI RPM High Lift
http://www.compcams.com/Company/CC/c...csid=1091&sb=0
-Rocker Arm upgrade:
1.72 Ultra Gold
http://www.compperformancegroupstore...de=GEN3Rockers
-Hi-Tech pushrods:
http://www.compperformancegroupstore...e=GEN3Pushrods
-Short lift Lifters:
http://www.compperformancegroupstore...ct_Code=875-16
I've checked the oil clearances on the main bearings and the rod bearings. Being after market arp bolts and scat rods, does anyone know the torque specs on these bolts?
What is the clearance needed between the two rods on the same journal and between the side of the rods and the crank?
Does anyone have a good link to show installation of cam and lifters? I have never done this before and want to be sure I am doing it properly.
That is it for the moment. I am sure I will have more concerns as the build progresses.
scat rods have a torque chart in the box it came in if i remenber correctly it was 70ft lbs for arp 2000 but here is a link so you can double check
http://www.rpmrons.com/ScatRodBoltTorque.html
http://www.rpmrons.com/ScatRodBoltTorque.html
Thanks on the side clearance information. As far as the torque specs go, thank you I will look at the page you sent. I did not buy the parts individually but as a assemble short block that i took apart to check the clearances and balance for self assurance.
I found a video to install cams and hydraulic lifters. My concern about the lifters is the ones in the video had flat bottoms. The ones I am using are roller hydraulic roller lifters.
Is there anything different about installing those compared to regular hydraulic lifters?
Is there anything different about installing those compared to regular hydraulic lifters?
Well I am frustrated with Comp Cams right now, I have to send back my lifters or the pushrods in exhange for a differnt set.
I talked to one of their techs on line and purchased the parts as he recommended, the problem is that the 1.72 Ultra gold rocker arms are non-adjustable which when ran with the standard pushrods and the short lift lifters put too much pre-load on the lifters.
I have to get my pushrod lengths measured and see if they make them short enough and if they do I would like to do that, but if not I need to swap out the lifters themselves.
Leason learned
I talked to one of their techs on line and purchased the parts as he recommended, the problem is that the 1.72 Ultra gold rocker arms are non-adjustable which when ran with the standard pushrods and the short lift lifters put too much pre-load on the lifters.
I have to get my pushrod lengths measured and see if they make them short enough and if they do I would like to do that, but if not I need to swap out the lifters themselves.
Leason learned
