Summit Racing® LS Lifter and Guide Kits SUM-HTLSKIT

Stock length will work. Cam or spring change you will want to measure.

DENNIS from CA answered on October 05, 2017

The 7.4 stock rods will work with these lifters.

JEFF from MT answered on October 25, 2017

I'm not 100% in your application but in my 6.0 L76 I used stock length pushrods (7.400) with these lifters.

ZACH from MO answered on October 24, 2017

I used these lifters in a 6.0 lq4 with stock 317 head (no milling) or decking to block and stock push rod checked pretty good.engine been running a few years now.

RYLAN from NE answered on October 10, 2017

These are stock replacement. So stock pushrods

CHRISTOPHE from NC answered on October 25, 2017

Stock Length

JOHN J from NC answered on October 24, 2017

These are factory replacement lifter trays and lifters. No additional parts are required. stock length pushrods are fine for a stock application.
We always verify Aftermarket camshafts for pushrod length.

KENNETH from MS answered on October 19, 2017

No... Factory

DAVID from PA answered on October 25, 2017

No

JARRED from MS answered on October 23, 2017

These are stock replacement lifters. No special length or after market push rods needed

TONY from TX answered on October 23, 2017

Depends on if block or head have been machined.
Always always check pushrod length.
If your a newbie refer to comp cams video on You tube ...

MATT from MN answered on October 05, 2017

I used stock length trick flow chromoly pushrods with this lifted set.

RICHARD from NV answered on October 23, 2017

It all depends on your application. I would get a pushrod lenght checker tool, Summit has a couple for sell.

JUAN from TX answered on October 25, 2017

Stock length push rods will work

CECIL from LA answered on October 10, 2017

They are an upgrade to the oem ls7 specs

CHRIS from OH answered on August 04, 2016

They are the same as the o.e. Lifters ,can't tell any difference in quality . Price is a lot cheaper than o. e . From a dealer ! I also used a full trunion kit for a real stable valve train!

NICK from CA answered on August 04, 2016

They are ls7 lifters but are really good OEM quality.

BRYAN from OH answered on August 04, 2016

Fitted lifters and even these are still knocking

DARREN from United Kingdom answered on August 05, 2016

Definitely an upgrade over OEM

RYAN from NC answered on August 05, 2016

Oem

BRENT from OH answered on August 04, 2016

The lifters I received (left) look nothing like AC Delco LS7 lifters (right).

NATHANIEL from FL answered on October 19, 2017

This is a big upgrade over the OEM units.... You have to be careful with bolts will break off in engine Block

ANSAAR from MI answered on August 04, 2016

They are one quality but they are universal style roller lifter that works in both 93-96 lt1 and gen 3 and gen 4 ls motors...they have an oil gallery hole for lt1on one side of the lifter that isnt needed on ls motors...so when you install them face all the holes towards the front of the ls motor

DAVID from IN answered on August 04, 2016

Seem to be an upgrade I have limited miles on them but they perform well so far

ROBERT from NE answered on August 04, 2016

Yes! A little noise is expected from a cam but so far so good since cam and head swap!

THOMAS from MI answered on August 04, 2016

These appear to be OEM quality although the lifter guides appear to have better oiling capability because its design differs from the OEM unit.

STEPHEN from IN answered on August 04, 2016

I would assume somewhere around stock. Ive added 102 horses and it runs fine. It could probably take more. If you want to get ridiculous with HP, almost nothing stock works. As far as max lift, the lifters work with almost all mass produced grinds. Again unless your installing something rediculous the lifter will work fine. With lift, valve to piston clearence should be more the worry

ERIC D from TX answered on July 27, 2017

Yes, they will tolerate an aftermarket big cam. I run a .625 lift cam 500 miles a week without issue. Horsepower limitation would vary with the combination.

MARVIN from FL answered on July 27, 2017

The question isn't really the max horse power but the max rpm which I wouldn't push past 6800 rpm, and a cam with a 53 degree lobe or greater.

DAVID from MI answered on August 02, 2017

Ls7 lifters handle .600+ lift in my application think that will take a lot more

RYLAN from NE answered on July 26, 2017

Yes

MICHAEL from GA answered on January 20, 2018

I have these in my LS7 with a 239/255 duration with .661/.661 lift cam for 4k miles with no issues what so ever!

CHRIS from OH answered on January 23, 2018

I've had very good results with these lifters. They are definitely an upgrade from factory and seem to hold up good with bolt ons

CHRISTOPHE from GA answered on January 24, 2018