replacing camshaft
Jan 26, 2010 | 05:14 PM
#31
TECH Apprentice
Joined: Mar 2007
Posts: 364
Likes: 0
From: Twin Cities, MN
definitely getting rid of the DOD. I don't plan to push it past 6500, but running the risk of collapsed lifters isn't worth it. i'll wait on the pushrods for now, just going to get a length checker and get the proper rods. this is what i've got on my parts list...
ls7 lifters
ls2 lifter trays
ls2 valley cover
corvette cam gear (3 bolt)
cam gear bolts
cam replacement kit (all kinds of gaskets and seals)
mls head gaskets
comp pushrod length checker
crank pulley bolt
head bolt kit
ls1 timing chain tensioner
i've definitely done a lot of homework on this, but any recommendations are welcome.
ls7 lifters
ls2 lifter trays
ls2 valley cover
corvette cam gear (3 bolt)
cam gear bolts
cam replacement kit (all kinds of gaskets and seals)
mls head gaskets
comp pushrod length checker
crank pulley bolt
head bolt kit
ls1 timing chain tensioner
i've definitely done a lot of homework on this, but any recommendations are welcome.
Jan 26, 2010 | 05:40 PM
#32
On The Tree
Joined: Nov 2009
Posts: 146
Likes: 0
From: Houston, TX
Jan 26, 2010 | 05:45 PM
#33
TECH Apprentice
Joined: Mar 2007
Posts: 364
Likes: 0
From: Twin Cities, MN
Jan 26, 2010 | 07:14 PM
#34
Thread Starter
Mod with training wheels
iTrader: (16)
Joined: Feb 2009
Posts: 7,741
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From: Detroit
LS7 lifters GM 12499225 114.40 (www.gmpartsdirect.com)
Lifter trays GM 12595365 x4 5.56 (www.gmpartsdirect.com)
GM valley cover GM 12570471 83.06 (www.gmpartsdirect.com)
Camshaft gear GM 12586481 14.34 (www.gmpartsdirect.com)
Camshaft bolts GM 12556127 1.71 (www.gmpartsdirect.com)
MLS Head gaskets GM 12589226 x2 17.74 (www.gmpartsdirect.com)
Timing tensioner GM 12585997 23.62 (www.gmpartsdirect.com)
total 365.35
Crank pulley bolt ARP 234-2503 27.95 (www.summitracing.com)
Head bolt kit ARP 134-3610 113.95 (www.summitracing.com)
total 141.90
Camshaft gasket kit GM 12499228
My setup developed a tick after about a month, and I attributed it to too long of pushrods. LS7 lifters are .060" longer than their LS1 counterparts, so you'll need corresponding pushrods to account for it. LS7 lifters like a little more preload, so 7.350" is just right. I used Comp Cams part # 7637-16 from Summit. Also my list is for a setup with the older 3 bolt cams. Let me know if you have any more questions.
Lifter trays GM 12595365 x4 5.56 (www.gmpartsdirect.com)
GM valley cover GM 12570471 83.06 (www.gmpartsdirect.com)
Camshaft gear GM 12586481 14.34 (www.gmpartsdirect.com)
Camshaft bolts GM 12556127 1.71 (www.gmpartsdirect.com)
MLS Head gaskets GM 12589226 x2 17.74 (www.gmpartsdirect.com)
Timing tensioner GM 12585997 23.62 (www.gmpartsdirect.com)
total 365.35
Crank pulley bolt ARP 234-2503 27.95 (www.summitracing.com)
Head bolt kit ARP 134-3610 113.95 (www.summitracing.com)
total 141.90
Camshaft gasket kit GM 12499228
My setup developed a tick after about a month, and I attributed it to too long of pushrods. LS7 lifters are .060" longer than their LS1 counterparts, so you'll need corresponding pushrods to account for it. LS7 lifters like a little more preload, so 7.350" is just right. I used Comp Cams part # 7637-16 from Summit. Also my list is for a setup with the older 3 bolt cams. Let me know if you have any more questions.
Jan 26, 2010 | 11:06 PM
#37
TECH Enthusiast
Joined: Jan 2010
Posts: 510
Likes: 1
From: Huntington Beach, CA
LS7 lifters GM 12499225 114.40 (www.gmpartsdirect.com)
Lifter trays GM 12595365 x4 5.56 (www.gmpartsdirect.com)
GM valley cover GM 12570471 83.06 (www.gmpartsdirect.com)
Camshaft gear GM 12586481 14.34 (www.gmpartsdirect.com)
Camshaft bolts GM 12556127 1.71 (www.gmpartsdirect.com)
MLS Head gaskets GM 12589226 x2 17.74 (www.gmpartsdirect.com)
Timing tensioner GM 12585997 23.62 (www.gmpartsdirect.com)
total 365.35
Crank pulley bolt ARP 234-2503 27.95 (www.summitracing.com)
Head bolt kit ARP 134-3610 113.95 (www.summitracing.com)
total 141.90
Camshaft gasket kit GM 12499228
My setup developed a tick after about a month, and I attributed it to too long of pushrods. LS7 lifters are .060" longer than their LS1 counterparts, so you'll need corresponding pushrods to account for it. LS7 lifters like a little more preload, so 7.350" is just right. I used Comp Cams part # 7637-16 from Summit. Also my list is for a setup with the older 3 bolt cams. Let me know if you have any more questions.
Lifter trays GM 12595365 x4 5.56 (www.gmpartsdirect.com)
GM valley cover GM 12570471 83.06 (www.gmpartsdirect.com)
Camshaft gear GM 12586481 14.34 (www.gmpartsdirect.com)
Camshaft bolts GM 12556127 1.71 (www.gmpartsdirect.com)
MLS Head gaskets GM 12589226 x2 17.74 (www.gmpartsdirect.com)
Timing tensioner GM 12585997 23.62 (www.gmpartsdirect.com)
total 365.35
Crank pulley bolt ARP 234-2503 27.95 (www.summitracing.com)
Head bolt kit ARP 134-3610 113.95 (www.summitracing.com)
total 141.90
Camshaft gasket kit GM 12499228
My setup developed a tick after about a month, and I attributed it to too long of pushrods. LS7 lifters are .060" longer than their LS1 counterparts, so you'll need corresponding pushrods to account for it. LS7 lifters like a little more preload, so 7.350" is just right. I used Comp Cams part # 7637-16 from Summit. Also my list is for a setup with the older 3 bolt cams. Let me know if you have any more questions.
How did you determine the correct timing chain dampner? I have read other posts using GM part number 12588670 from the LS2 for a 5.3 cam swap.
Jan 27, 2010 | 08:55 AM
#39
TECH Apprentice
Joined: Mar 2007
Posts: 364
Likes: 0
From: Twin Cities, MN
LS7 lifters GM 12499225 114.40 (www.gmpartsdirect.com)
Lifter trays GM 12595365 x4 5.56 (www.gmpartsdirect.com)
GM valley cover GM 12570471 83.06 (www.gmpartsdirect.com)
Camshaft gear GM 12586481 14.34 (www.gmpartsdirect.com)
Camshaft bolts GM 12556127 1.71 (www.gmpartsdirect.com)
MLS Head gaskets GM 12589226 x2 17.74 (www.gmpartsdirect.com)
Timing tensioner GM 12585997 23.62 (www.gmpartsdirect.com)
total 365.35
Crank pulley bolt ARP 234-2503 27.95 (www.summitracing.com)
Head bolt kit ARP 134-3610 113.95 (www.summitracing.com)
total 141.90
Camshaft gasket kit GM 12499228
My setup developed a tick after about a month, and I attributed it to too long of pushrods. LS7 lifters are .060" longer than their LS1 counterparts, so you'll need corresponding pushrods to account for it. LS7 lifters like a little more preload, so 7.350" is just right. I used Comp Cams part # 7637-16 from Summit. Also my list is for a setup with the older 3 bolt cams. Let me know if you have any more questions.
Lifter trays GM 12595365 x4 5.56 (www.gmpartsdirect.com)
GM valley cover GM 12570471 83.06 (www.gmpartsdirect.com)
Camshaft gear GM 12586481 14.34 (www.gmpartsdirect.com)
Camshaft bolts GM 12556127 1.71 (www.gmpartsdirect.com)
MLS Head gaskets GM 12589226 x2 17.74 (www.gmpartsdirect.com)
Timing tensioner GM 12585997 23.62 (www.gmpartsdirect.com)
total 365.35
Crank pulley bolt ARP 234-2503 27.95 (www.summitracing.com)
Head bolt kit ARP 134-3610 113.95 (www.summitracing.com)
total 141.90
Camshaft gasket kit GM 12499228
My setup developed a tick after about a month, and I attributed it to too long of pushrods. LS7 lifters are .060" longer than their LS1 counterparts, so you'll need corresponding pushrods to account for it. LS7 lifters like a little more preload, so 7.350" is just right. I used Comp Cams part # 7637-16 from Summit. Also my list is for a setup with the older 3 bolt cams. Let me know if you have any more questions.
Jan 28, 2010 | 10:44 PM
#40
TECH Enthusiast
Joined: Jan 2010
Posts: 510
Likes: 1
From: Huntington Beach, CA
Here is something I found out today that was quite interesting.
I ordered GM part number 12499225 from my Chevy dealer. This is a box of 16 GM LS7 lifters. My cost was $118.80. They are packaged in original AC Delco boxes. The individual boxes are numbered HL124 17122490. If you wanted to buy an individual lifter GM list is $57.59. So there is a great price break if you order it under the correct number. I did not believe it until I my parts were delivered today.
I ordered GM part number 12499225 from my Chevy dealer. This is a box of 16 GM LS7 lifters. My cost was $118.80. They are packaged in original AC Delco boxes. The individual boxes are numbered HL124 17122490. If you wanted to buy an individual lifter GM list is $57.59. So there is a great price break if you order it under the correct number. I did not believe it until I my parts were delivered today.