Best LS1 rebuild kit
Thread Starter
Teching In
Joined: Oct 2019
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Best LS1 rebuild kit I will keep this short and sweet. I am doing a LS swap in a '65 Impala SS. The motor came from a '99 Trans Am. I am building the car for my wife. It will be driven frequently by her, so I am going back stock for now. My question to y'all is: which rebuild kit(5.7 4L60E) has worked best for someone who wants to pull the heads off and replace everything on a 20 year motor with 100k miles that will cause it to smoke or knock? I only want it to run like it did in '99 lol. The motor is on a stand in my garage and instead of throwing used parts at it and get the car moving, I have decided to do it right the first time. I will be using a Holley 302-1 pan and an aftermarket AC bracket due to clearance issues, but everything else will be stock......for now. I appreciate your time and wisdom. Y'all have helped me overcome many obstacles over the years.
Teching In
Joined: Dec 2019
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I got the same advise. Come to think about it ive been working on these engines at the dealer and aftermarket shops for over 15 years. Not once have i seen an issue with the bottom end. Most failures i have seen have been valve train related. (broken valve spring, failed lifter, wiped cam, valve issue) Im sending my heads off to be worked, throwing in a cam, replacing all gaskets and and leaving the rest alone.
Thread Starter
Teching In
Joined: Oct 2019
Posts: 23
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Thanks for the replies. I guess I should have asked which rebuild kits have worked best for all of you aluminum block guys. Head/valve cover/intake/front and rear seals/water gaskets. I’ve always been an old school guy building 350’s and 396’s to go back stock in our old cars. This will be my first LS swap and I’m looking for advice on which gasket or full kit has the best outcome. Thanks again for the replies.
Thread Starter
Teching In
Joined: Oct 2019
Posts: 23
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It was abused. The sludge is thick in this one.
I read on another thread about a full kit from WS6. Thoughts?
Our complete rebuild kits include everything you need and likey at a better deal. Especially at 70 ea for pistons alone.
Our kits are $699 and include
How to build and modify gm ls engines book
Mls head gaskets
Mls exhaust manifold gaskets
Valve cover gaskets with grommets
Coolant bypass seals
Front cover gasket
Front cover seal
Cam thrust plate with bolts
Rear cover seal
Rear cover gasket
Valley cover gasket
Knock sensor grommets
Billet oil barbell
Oil pan gasket
Oil pump o rings
Oil pump
Timing set
Cam bearings
Main bearings
Rod bearings
Gm style head bolts
Pistons with pins
Rings
Shipping is free also.
You wont find a better more complete and heavy duty kit out there
If you want more info email me
Rpmspeedtech@gmail.com
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It was abused. The sludge is thick in this one.
I read on another thread about a full kit from WS6. Thoughts?
Our complete rebuild kits include everything you need and likey at a better deal. Especially at 70 ea for pistons alone.
Our kits are $699 and include
How to build and modify gm ls engines book
Mls head gaskets
Mls exhaust manifold gaskets
Valve cover gaskets with grommets
Coolant bypass seals
Front cover gasket
Front cover seal
Cam thrust plate with bolts
Rear cover seal
Rear cover gasket
Valley cover gasket
Knock sensor grommets
Billet oil barbell
Oil pan gasket
Oil pump o rings
Oil pump
Timing set
Cam bearings
Main bearings
Rod bearings
Gm style head bolts
Pistons with pins
Rings
Shipping is free also.
You wont find a better more complete and heavy duty kit out there
If you want more info email me
Rpmspeedtech@gmail.com
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Teching In
Joined: Oct 2019
Posts: 23
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I should probably post this elsewhere, but I am also looking for the best plug n play engine harness for 99 TA 5.7 4L60e. I have the stock harness, but it is damaged to an extent I would rather do the upgrade now than try to save this one. I’ve read plenty of threads, but I’m just seeing if anyone has any current positive/negative opinions on the popular brands that are producing them.
Thank you. I’ve done some digging and the WS6 outfit seems to be the perfect choice for my plan.
I should probably post this elsewhere, but I am also looking for the best plug n play engine harness for 99 TA 5.7 4L60e. I have the stock harness, but it is damaged to an extent I would rather do the upgrade now than try to save this one. I’ve read plenty of threads, but I’m just seeing if anyone has any current positive/negative opinions on the popular brands that are producing them.
I should probably post this elsewhere, but I am also looking for the best plug n play engine harness for 99 TA 5.7 4L60e. I have the stock harness, but it is damaged to an extent I would rather do the upgrade now than try to save this one. I’ve read plenty of threads, but I’m just seeing if anyone has any current positive/negative opinions on the popular brands that are producing them.
Also from that picture it doesnt look very sludgy at all....???
Thread Starter
Teching In
Joined: Oct 2019
Posts: 23
Likes: 1
Thanks
On The Tree
Joined: Sep 2016
Posts: 103
Likes: 18
That's a fairly clean engine. About what I'd expect for a 100k engine from someone who likely followed a 5000 mile OCI. If you just want a solid, reliable driver for the wife.........I don't even think I'd pop the heads off. Personally, I'd replace every seal/gasket/valve seal you can get to, maybe do an oil pump/o-ring while the pan is off, inspect timing set and all the rockers, then instal it and get it running. I'd then put a can of seafoam in it, idle it for a half hour, then let it set overnight and change the oil again the next morning and hand the keys to the boss. If you can, I'd pull all the rockers and shoot some air into each cylinder to check for seal, and leakdown. If that passes, clean it up, seal it up, and run it.
Thread Starter
Teching In
Joined: Oct 2019
Posts: 23
Likes: 1
That's a fairly clean engine. About what I'd expect for a 100k engine from someone who likely followed a 5000 mile OCI. If you just want a solid, reliable driver for the wife.........I don't even think I'd pop the heads off. Personally, I'd replace every seal/gasket/valve seal you can get to, maybe do an oil pump/o-ring while the pan is off, inspect timing set and all the rockers, then instal it and get it running. I'd then put a can of seafoam in it, idle it for a half hour, then let it set overnight and change the oil again the next morning and hand the keys to the boss. If you can, I'd pull all the rockers and shoot some air into each cylinder to check for seal, and leakdown. If that passes, clean it up, seal it up, and run it.
Thread Starter
Teching In
Joined: Oct 2019
Posts: 23
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VERY small, especially compared to the one who created it! Why I get so tickled when people boast about there "Accomplishments" lol anyways, hope the project goes well! That is gonna be the PERFECT engine for your wife to cruise with but still have plenty of power.
If you do decide to tear into it I've also used the @WS6store.com rebuild kit including their pistons. I'm over 500whp and it's working great.
Teching In
Joined: Dec 2019
Posts: 31
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If you do decide to tear into it I've also used the @WS6store.com rebuild kit including their pistons. I'm over 500whp and it's working great.
Thanks for the good words guys!
As far as a plug and play harness, the psi conversions harness is a great option and the ebst part is using a stock computer that any tuner can work with. Dont stick yourself in the corner with the Terminator X setup. Its alot more than a stock style harness and most usually spend a bunch of money on it and never get it to run right.
As far as a plug and play harness, the psi conversions harness is a great option and the ebst part is using a stock computer that any tuner can work with. Dont stick yourself in the corner with the Terminator X setup. Its alot more than a stock style harness and most usually spend a bunch of money on it and never get it to run right.