242 Reviews
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John J. Verrett
· December 26, 2017
Very awesome place . I really love his recommendations. I have bought 2 cam kits and 2 turbos from him and plan to keep buying stuff from him as I need it. I highly recommend him for all your needs as... he is very smart about this stuff and knows what will and won’t work! See More
Matt Varrenti
· October 24, 2017
John is an excellent guy to deal with who is knowledgeable and passionate about what he does. Took excellent care of me on my order and turned me into a lifetime customer with 1 phone call! Thanks John!
David Hill
· November 29, 2017
Awesome guy to deal with, very knowledgeable of the ls world he will tell you how to make your car fast. Look forward to the next engine I build
James Onyschuk
· December 20, 2017
Extremely quick shipping! By far the best marmon flange option in the market.
Ron Link
· February 9, 2017
Got my down pipe flanges and outlet flanges for my S475 the fit is amazing I called and talked to someone they gave me all the right part numbers and was able to answer all my questions definitely th...e clean and easy way to go with these flanges you for sure get what you pay for with these product gunna be going back for other builds See More
Gerry Penn
· October 26, 2017
You are a god :) there is no other cam guru like you
Aaron Holt
· March 14, 2017
John is the man. I would buy from this guy a thousand times over. He always has an answer for my stupid questions. The guy knows a lot about what he does. His products are proven all the time. if you're thinking twice about buy his products don't think about it just do it. See More
Eric Schwalm
· November 21, 2016
Lil john tried touching Me inappropriately at yellow bullet!

Ok now that I have your attention, that ^^was a joke but this isn't! John flat out knows his stuff, if you want to go fast and get the... right stuff the first time call him! See More
Kirk Ryan
· May 14, 2017
ordered a set of precision turbos,wastegate and bovs
great service, quick response to any questions that I had, will definitely be ordering my cam and parts from him in the very near future, Top Notch shop!!
Caleb Wisher
· December 14, 2017
Excellent service and knowledgeable. Will be a returning customer!
Derrick Sanders
· November 21, 2016
Really good guy to deal with. Have got ahold of him on the weekend with questions, and he was happy to help me out. Couldn't ask for a better place to deal with. Ljms has me for a customer for life!!!... Ljms ftw!!!! See More
Grant Rose
· June 12, 2017
Ordered a Stage 3 turbo cam from John, gave him all all the specs of my motor build and he gave me the perfect camshaft!

Dude knows his shit and excellent customer service!
Jerry Messick
· October 26, 2017
I love the feel of lil johns bump stick! Tip: use lube!
Henry Poirier
· July 26, 2016
I bought a new cam (second hand from someone) and it's one of LJMS custom grinds. I can't be happier with its performance. I didn't buy cam directly from John but he still took time out to answer my q...uestions. Ordered a few other parts and 2 days later they were here.
Definitely a reputable company!!
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Roy Shachar
· June 6, 2017
I got my LJMS twin tubo cam and two JGS wastegates from John, was a smooth transaction and the car sounds amazing. Thank you for everything.
Justin Graves
· June 11, 2017
John is awesome straight up and gets parts setup and sent out fast and is willing to listen and help get service not many of us out there anymore. Justin's Custom Auto in Orlando
Aaron Jones
· April 20, 2017
No doubt Lil John is the man. I called him with a million question about a couple builds I was doing, he answered all my question and spec'd everything for me. Turned out great I couldn't be happier
John Hodge
· July 26, 2016
I have bought a lot of parts from John and he has always treated me with respect. Parts come in fast and will do his best to make sure you get the right parts needed for your application. Aways willin...g to answer your questions good or bad, but is very straightforward. Aways looking to bring new parts to the market to help move you're project forward.. A+ guy! See More
Johnny Jompa Wallin
· October 28, 2016
Can only say good things ... John are helpfull and have many good parts to sell ;)
And he have good contact with BTR and Forced Inductions .
And he understand my crapy english :)
Thanx John
Cory Sinyard
· April 20, 2017
This guy knows his stuff! He will tell you the real deal even if it means he misses a sale. He is all the end results, I'd never doubt a thing he's says!!!
Customer Brian Ausbon just sent this idle clip over of his TA.... We did a custom Hydraulic roller cam and brought in Lenny at Ultimate converter Concepts to do the perfect converter for it...This a 427 inch motor with a Forced Inductions Billet 94mm GT55.... Listen to how responsive it is just on a free rev!! And this cam is 240+ on both sides....=) Cant wait to hear the results off of this one!! Should make some BIG power.... like 1300 rwhp@ 20 psi big......
LJMS does blower cams too....=) 402 inches of F1X fed nastyness.
Heres one a little bit longer for your Listening Pleasure.

LJMS cams the quickest and fastest hydraulic roller equipped LS powered cars on the planet... We can put that same knowledge and technology to work in your boosted LS car too. Just give us a call!!!

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Website Revamp Time.

Its time to revamp the website a little and I'm looking for cool and interesting photos for the scrolling banner on the main page. Winners circle pics, Rolling road shots. Anything cool and interesting with LJMS parts on board will be considered. I may not be able to use all of the ones you guys send in, but they might be used in other ways.

If you send me a professionally taken photo of your car... Please ask the photographer who took it for per...mission to use it, or let me know how much they want to charge to use. it.

Oh. And if your photos get Chosen for use on the website... You'll get a free swag pack from me. Hat, Shirt, and a Banner for the shop.

Have a Great Monday!!!

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RPM Lovers special.

Does thinking about the sound of a 9000 RPM turbo LS engine make you giddy like a 5 year old at Christmas? Lets stop thinking about it... and Do it with this rotating assembly package.

I have put together 4 rotating assemblies that contain the following parts for a special one time only till they are gone price of 3179 dollars.


Callies Dragonslayer 3.37 stroke crank
Callies Compstar 6.300 long connecting rods.
Wiseco Flat top pistons with rings in your choice of bore.
Wiseco H13 .200 wall Tool steel Pins.

These parts would normally run you over 3600 dollars and once these 4 packages are sold, the deal will not be this good again.

Call me today to get your pistons picked and ordered, and to go over the other options available!!! ( dome pistons, crank balancing)

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Making some steam with that new LT powerplant.

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DBR High Performance

A&A Corvette Performance, #416ci and a magic Lil Johns Motorsport Solutions camshaft for some crazy numbers on 93 octane and meth injection. Watch out for Christian Hyatt !!!

Want to give a warm Welcome to Chris Grafton and the crew from Grafton Fabrication. They are now a LJMS Dealer and carry a full line of all fabrication and engine products. So if you are in the Overland Park Kansas area and need something made outta metal... Give Chris and the guys a call!!

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Here's the Video from Barrys 1325 rwhp pull on Saturday.

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Barry Cook hit the rollers this past weekend with the new combination and laid down some pretty impressive numbers prior to sucking the fuel pumps dry. 1325 rwhp on a Mustang dyno thats known for being kinda stingy.

This years combination was stepped up a little bit on all levels. the Mike Lough Racing Engines built engine is now 408 cubic inches. Topped with the SPS Cylinder Heads Haymaker heads, Holley Performance Products Hi Ram, and a 417 Motorsports air to water IC.... VS Racing provided the 79/78 turbos being utilized and they made 38 psi of boost on the final pull. Scott Clark from Realtuners did all the tuning.

Hopefully, with any luck, Barry will have a better year this year than last and he will be able to made strides again toward lowering his personal bests. The truck has been 5.38@130 in the 1/8th and 8.58@156 in the 1/4.

Look for Barry on the live feed of Lights out 9 in valdosta, or in Person if you are headed to the race yourself.

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Anybody thinking they want one of the custom LJMS flexfit hats, don't wait! Theres a batch of orders heading off to the embroidery shop by the first of next week!! If you get it in now, you wont have a long wait.

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First startup of the biggest Hydraulic roller camshaft I have ground to date for a blower motor.

She sounds kinda... Rowdy.

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Jared Cocanougher

First startup with the new build. You can definitely tell there’s more camshaft and cubes. Big thanks to all who have helped with this engine!

Brian Tooley
J...ohn Bewley
Clifton Miracle
Peter Okeson
Kyle Stratton
Blake Hughes
Lewis Roberts
Randy Vrooman
Tom Sewell

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Remember the Tool steel cam I posted proggession pictures of a while back? The engine it was for is up and running and almost ready to start making some steam.

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The Most interesting exhaust ever on a CTSV??

This one is going to be a Monster coming out of the Horsepower Soutions camp.

Thanks for allowing LJMS to play my part in the combination.

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If any of you guys are trying to get in touch... I am having phone issues today the 18th. I can't call out nor can anyone call in. So Email and messenger are currently the only methods of communication that are functioning.

Join us on the podcast tonight!!!

We will have Special Guest Jeff Stacy from Aeromotive Fuel Systems on tonight with the rest of the crew!!

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Scott Clark was live — with James Short and 11 others.

RealTuners Radio Episode 31 Tonight!
Special Guest: Jeff Stacy from Aeromotive and CoPilot for Larry Larson

Like us at RealTuners, LLC...
Join the podcast fan page at RealTuners Radio Podcast Fan Page

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Lil Johns Tip of the Day.

Due to numerous attempts to steal from me, The sensitivity of my website when it comes to making sure you are who you say you are is set to about 11.

If you get an order rejected while trying to place an order from your computer, PLEASE double check EVERY BOX in the BILL TO portion of the check out screen to see if its accurate and current. My computer system will compare EVERY ONE of the boxes that has a Red asterisk beside it.


Move and didnt update your billing? It will reject it. Using your account to buy some parts for a buddy with his card? You have to add his billing address COMPLETELY for it to take it. Have your wife's cell phone number on Your debit card at the bank because she takes care of everything there? Yep you guessed it. Rejected. ( you'd be surprised how many times this is what gets a card rejected)

I don't mind putting in orders over the phone but a lot of times people say " well if I had known it was just that sensitive I coulda fixed it myself." So I thought I would make this post to shine a light on just how sensitive its set right now.

PS. If you are a first time buyer on the website... You do not have the option to ship it to an address other than the Verified and matched bill to address of the card used to pay for the order. After that initial order is placed and I can trust you aren't a thief.... You get that option for any future orders going forward.

Thank you guys for your understanding.


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Another batch of custom hats going out today. If you want something a little different then the black with blue threads, Get yours here:

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I was not in the office yesterday because I drove to Missouri to get my daughter for Christmas. I came back to a very large number of voicemails and emails from being gone one whole day.

I ask for your patience from now till years end on getting in touch with me. If you left me a voicemail, I will return it. It might take me 3 or 4 days to do so... But I will. I ask you please Refrain from calling and leaving other messages or sending emails about the same topic s...o i can try and be as efficient as possible in getting back in touch with everyone.. I will not be working much more than normal business hours while my daughter is here so response times will get stretched out a little.

Thanks for your patience and Understanding


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