Hey Steve! I just got my car back last week after the engine swap and I'm actually still alive! You guys built a fabulous 383 Stroker - 450H.P. engine for my '80 corvette and it runs and sounds every bit as good as i had hoped. It really screams, and afterwards, I do...

Thank you guys so much for building an awesome engine! This 383 stroker screams at 400 hp! The shop that installed my motor was very very inpressed! The engine was shipped already tuned and all dialed in! They had a Roush mustang and they said that my engine that was...

In 2014, I decided that I wanted to upgrade and rebuild a 1937 Ford Cabriolet that had been my father-in-law's for over 20 years. So....I began with the engine and transmission. I contacted Performance Unlimited at the time in NJ. Steve worked with me to design the...

I purchased this 383/510 back in 2004 and now have it in an 85 Blazer with 5 speed. 13 year old motor runs better than ever! Fastest combo I've ever had. Proformance Unlimited delivers QUALITY performance.

WOW!! Great experience dealing with Steve. He was very helpful with any question and resolving any questions.This is the car that your 454 engine promotion video went in. It was the 2017 Second place winner in its class at World of Wheels in Pittsburgh and First Place...

Steve,Here are some pics of the bad ass 427 stroker you guys built for my 1966 Chevy II.

Steve,The car is being broken in as I type. I have about 100 miles on the new engine and it is perfect.I can`t thank you and your team enough for building this for me and assisting me through the process.I had it installed over a weekend and then did the modification...

Steve, My name is Mike C. I’m the mechanic that installed the LS you guys built for Robs 69 Chevelle. I would like to say you guys did an awesome job. You delivered exactly what you said you would. A turn key engine that produces gobs of torque and HP. I literally had...

The 383 stroker that you built for my 77 vette is just awesome! The car sits in a storage unit months at a time. However, it always fires right up without any hesitation and runs fantastic! I can't tell you enough good things about this motor and how reliable it is! I...

Steve,Just wanted to send you and your crew some pictures of my 35 hot rod with one of your 383 SBC stroker engines. It’s riding nice I’m waiting for my state inspection before putting it out on the road.I’ll swing by your shop so you can get a closer look.Thanks for...

Hi Steve,Just thought I'd flick a few photos through of our 1934 Chevy Sedan rod build, with the engine you supplied us...its all fixed in place on the newly built chassis with the Kugel front and rear ends all in too. Looking great so far I reckon 🙂Anyways - I hope...

Hey Guys,It's taken me a while to get back to you but take a look at my finished project. Engine runs strong and sounds great!!! Hats off to you for a great engine build. Hope you have a prosperous 2009 with more business than you can keep up with.1973 Corvette Coupe,...

Hi Kim,I can't help myself. I know I've already expressed my feelings on how happy I am with the 350/350HP Chevy power plant I purchased from your company. Truth be tooled, I've built a few hot rods over the years and have never ventured to far from home with any of...

Gentlemen:Here are a few pictures of the '68 Firebird my son in law and I built. We put in the Chevy 383 475 HP stroker and it runs as good as it looks.Ken FosterRiverton, Wyoming

Hey Guys !!What an absolute pleasure it has been working with you. The entire process of my motor build, from conception to completion, has been more than I could of hoped.The motor runs flawlessly. I just returned from a small car show in Prairie City, Oregon. The...

Steve,Just wanted to let you know that the engine is in the Camaro. I started it up and am very impressed! It was rush to hear it run .I let it Idle for thirty five min. Now and then I INCREASE THE RPM TWO 2000,THEN 2400 ,never hit it hard, Though it was like a horse...

Hey guys this is Derek Hagner I bought a 383 Stroker (Edelbrock special) one of ten in Dec. of 03 and I'm extremely happy with it. You guys did a great job a matter of fact you have it posted under your Chevy performance category, it's the one with the yellow block...

Hey Doug and Steve,This is Marcus.....I know you guys been wondering why I hadn't email you about the results of the motor....well it's a monster.....I took it to the track just last night 1/8th of a mile track and guys I'm telling you I got into my first race with a...

I just wanted to thank you guys for the great job you did on my motor. Ijust recently got the car on the road after a 2-year frame off Resto Modbuild. The motor starts first crank every time and has insane power... notto mention it is quite a crowd pleaser to say the...

Hey guys,I just wanted to thank you for everything you guys did for me and building me my motor. I really appreciate how honest you guys were throughout the whole process too. My dad and I finally got it all hooked up in my 72 Nova and the car runs like a beast!...

Wow, is all I have to say about this 383 stroker I got from your shop. Thanks so much for making such a great motor. The sound and the torque this motor puts out is amazing, also, I have 273 gears in my impala that helps with fuel. I get in the range of 14 to 15 mpg....

Kim & Steve:Here are some pics of the Chevelle and that bad ass 383, I cant believe how nice this project is turning out and I have to say I couldn't have done it without Proformance Unlimited, only have the brakes left to finish so please look past that ugly...

Doug & SteveI want to thank you for building this beautiful power plant for my '67 Camaro. You guy's make dreams come true for people like me. Its been 2 years with my 500hp 383 and I just wanted to show you the heart beat you put into the 2nd love of my life...

Great group to work with. Won't hesitate to get my next motor from these guys.Tom T. Bordentown, NJ

Steve here’s some pictures of my car, I finally got it on the road!Next time I’m down south I’ll stop by for you guys to ring it out.The 383 is awesome, sounds nasty, and pulls like an iron man in a tug-a-war competition.Thanks againAl Fairfield, NJ...

Doug & Steve,Hey guys. I thought I'd send you some photos (and a brief video) and my appreciation for the engine you built for me. I am very pleased with how everything turned out, and I am having a blast with my car now. I always liked my Camaro, but now with the...

I purchased a 383 stroker with 450 horse last year from you. Just wanted to let you know it is running awesome. The motor really likes the combo, and the combo fit under my stock hood. The engine is hooked up to a TCI hypo turbo 350 and Moser 12 bolt. The car has 8600...

This is Lenny everything is still running strong imagine that like we would expect anything less. The motor (Chevy 383) is still AWESOME I thought I would send you another photo of my Camaro to post on your customer car photos page if you want if not that's cool. Be...

I have attached a photo of my 1967 Camaro SS 350cu in 375hp motor built by the boys at Proformance Unlimited. Post it please because I am proud of the build and especially the horsepower the boys built.Thanks Lenny

Dear Steve & Crew,I just wanted to let you know that I have been cruising in my 1957 Chevy 210 & havingthe time of my life. I have enclosed a picture to show you the end product!!!I also am writing to thank all of you at Proformance Unlimited for the quality...

Doug And Steve,Just a few lines to let you know the motor (Chevy 350)has been installed. The motor is in creditable. Although I haven't wound it over 4200 rpm. it is smooth and responsive and has a bit of an attitude. I've matched it to a 200r4 extreme duty OD...

Steve & CrewJust wanted to drop you guys a line and a HUGE THANK YOU on my 350/420hp motor. This 1966 Chevelle super sport was a 10 second street/strip car. It was my brothers car, then he passed away at age 44, when he died, so did the 472 cu. in. race motor.My...

Holy F***ING COW!!!!!!!!!!!!!!!!!!!!!!!!What a motor!!!!!!!!!!!!!!!It's INSANE, with a full exhaust system on it, it sounds like a dragster and the tick over is to die for. It's won the biggest look at me factory the moment it starts up.I haven't had the "balls" yet...

I purchased a 383 stroker, 475 hp and I am so pleased at the performance. After sitting on the a tubbed TCI frame for a year it took only one crank to fire it up. A slight adjustment on one of the four barrels and it was off and running. Attached are some pictures of...

Just wanted to let you all know the motor you built (Chevy 383 Stroker), exceeds all my expectation's!! I haven't broke it in but I'm betting I can get the front tires off the ground, it flat screams. I won a trophy the first show..TimWashougal,WA...

Here are some of the pictures of a 1940 Chevy 2 Door Sedan with the 350/375 HP engine I got from ya'll several months ago. The engine is great and all I expected. Still have some work on the car and going to take awhile. ThanksRegardsJeff DJonesville, La....

Thanks guys and Kim for the 400hp 383. My truck is a 95 1/2 ton Chevy with a straight axle conversion welded 14 bolt full floater rear end with 410's. This engine will melt my 35" tires in high range with ease. It's very street able to the point of my wife driving it...

"Hi Steve & All the Wonderful People at Proformance Unlimited."This is my 1965 Cheetah GT Race Car that hasYour 335 H/P Chevy "Roller" Engine in her. Total Weight, 1,550 Pounds! She Moves Fast!Your Chevy "Roller" Engine really is "Beautiful" in her. I am just...

Tim Lacy's 1965 Impala SS With your sweet built 327 power plant!!!!!!!! Thank you so muchI finally have the car 99% done and wanted to send you some pics. Thank you for a one-of-a-kind engine, man. You wouldn't believe all the compliments and inquiries I get on who...

Steve,I have sent pictures of my 57' Chevy. The engine looks PHENOMENAL and sounds GREAT! I have people wanting to take pictures all the time and needless to say there is no engine like it or can even compare. Also, thanks for the good customer satisfactionI just...

Hi,my name is Paul Young. I ordered the 383 Stroker SBC while I was on leave from Iraq. I was given a 1986 Monte Carlo that has been in my family since it was new. I just got home and installed the motor this month. It looks great and sounds amazing, it fired right...

To the Proformance Unlimited team,I would like to take this opportunity to thank you for building such a tuff motor for my 1975 Holden Kingswood. It's a badass! I feel a little lonely, as no one wants to play beside me at the traffic lights. Also you guys were great...

Dear Steve & Crew, I just wanted to let you know that I have been cruising in my 1957 Chevy 210 & having the time of my life. I have enclosed a picture to show you the end product!!! I also am writing to thank all of you at Proformance Unlimited for the...

Steve,As you can see from the pictures, I dropped the motor in the 35 Plymouth. I am more than satisfied with the performance of the 383 stroker motor. It exceeds my expectations. From my experience with blower motors this motor is the most dependable and problem free...

Hello Steve, I just wanted to drop you a line to say thanks for the great engine you put together for me (347 stroker). I really appreciate all the time you spent answering my questions before and after the sale. You delivered as promised and then some. I really have...

Thanks guys and Kim for the 400hp 383. My truck is a 95 1/2 ton Chevy with a straight axle conversion welded 14 bolt full floater rear end with 410's. This engine will melt my 35" tires in high range with ease. It's very street able to the point of my wife driving it...

Hi Kim,It took pretty much forever, but the shop doing major work on my hot rod finally finished everything up. I've enclosed a couple of pictures. So far I'm very happy and looking forward to future car shows. Many thanks to Proformance Unlimited for the excellent...

Kim - wanted you to see my car - with new engine. I still have minor things to do on it, but am driving it every opportunity I get. Thanks to you, Steve, Doug and everyone there for all your help, Hope I wasn't too much of a pain. I am completely satisfied with the...

I wanted to thank you guys for the awesome quality and workmanship that is my 475 hp 383. I have only put 230 miles on it, but it fires every time and has incredible power. Here is a few pictures of the final product.Thanks again,Shep Nelson...

Doug,Here are some pictures of my 63 Corvette with your 383 installed. The installation was easy and the motor is great. It started right up the way it came to me and I have been putting about a hundred miles a day on it. I was worried about hood clearance but as you...

Thanks to the Proformance Unlimited team.I want to thank all of you, for your support and technical knowledge during this project. The engine is what you had promised. This is a perfect example of professional people knowing and delivering what they promise. There are...

Hey guys this is where the engine you built me ended up, it made a real nice marriage and a lot of guys are asking where I got that superb engine. And I was wondering if the decal you stuck on the valve covers if you had big ones like that I'd love one in the rear...

These are pictures taken of Larry Six's 1967 Camaro SS/RS 383-475 HP. You guys did a great job--runs great, sounds great.By they way, this is my first new car I bought in April of 1967. Still a GREAT ride!Thanks so much,Larry...