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04-30-2010, 11:30 AM
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#1
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Join Date: May 2006
Location: Midland Park, NJ
Posts: 1,389
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Pushrod length question
If I have a stock LS1 with stock parts (7,400" pushrods) If I were to mill 0.035" off the deck of the heads and put them back on the car can I use the same pushrods?
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04-30-2010, 03:23 PM
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#2
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Join Date: Sep 2009
Posts: 28
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Ive never put together an ls1, but I milled .050 off of the heads on my gen 1 350, and Im using the stock pushrods. If the valves adjust the same way the older motors do, Id say you can get away with that.
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04-30-2010, 03:57 PM
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#3
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Join Date: Jul 2009
Location: Bridgeport NJ
Posts: 165
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I would use a 7.35" pushrod. It's always better to be a little on the short side than the long side.
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04-30-2010, 04:42 PM
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#4
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Quote:
Originally Posted by RamAir95TA
I would use a 7.35" pushrod. It's always better to be a little on the short side than the long side.
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i was going to say the same but i thought the ls style rockers were different with setting preload and whatnot.
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04-30-2010, 08:20 PM
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#5
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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Quote:
Originally Posted by sweetbmxrider
i was going to say the same but i thought the ls style rockers were different with setting preload and whatnot.
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Same as any full bodied roller rocker... just torque em down.
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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05-01-2010, 11:23 AM
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#6
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Quote:
Originally Posted by LTs1ow
Same as any full bodied roller rocker... just torque em down.
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i meant more like a shaft mount where exact pushrod length isn't necessary.
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05-02-2010, 02:22 AM
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#7
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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The stock one will work just fine. 7.35 may be short. Lt1's and gen 1's have adjustible rockers. Ls1's do not
__________________
2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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05-03-2010, 07:31 AM
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#8
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Join Date: May 2006
Location: Midland Park, NJ
Posts: 1,389
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LS1's use a rocker stand where as older motors you torque the nut down on the rocker.
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05-03-2010, 05:50 PM
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#9
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Join Date: Aug 2009
Location: Newark Delaware
Posts: 37
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LS1 rocker bolts are torqued to 22 Ft. Lbs. with 3/4 to 1 1/4 turn of preload.
__________________
1986 Camaro
1996 firehawk (crashed)
Retired NHRA driver
Frank...
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05-03-2010, 10:33 PM
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#10
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Join Date: Aug 2005
Location: Blackwood, NJ
Posts: 2,295
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Is there a calculator for the pushrod length? I am doing a cam swap and also wonderring pushrod length on my LS1.
__________________
Jeff
2002 WS6 T/A.. M6..Built 383 TMR tune..461rwhp,458rwtq
2009 G8 GT. Bone stock 13.6@103.. Vararam Intake, GXP Axlebacks, LS2 FRC's
1998 Corvette Convertible, Vararam Intake+Power Duct, Fast 90/90, Ti Axleback..12.8@110
2003 Cobra Convertible 10th Anniversary
http://www.fquick.com/slow-v6
Local car cruise schedule..
http://www.cliffscalendar.com/
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05-04-2010, 07:17 AM
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#11
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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adjustable pushrod length checker
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05-04-2010, 10:17 AM
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#12
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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Quote:
Originally Posted by sweetbmxrider
adjustable pushrod length checker
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the only way to be sure.
__________________
2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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05-04-2010, 11:43 AM
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#13
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Join Date: May 2006
Location: Midland Park, NJ
Posts: 1,389
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