C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Who still does performance engine work?

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Old Jul 24, 2014 | 10:43 PM
  #21  
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Originally Posted by gears
Seems like the LT1/4 vettes of the 90's are somewhat being phased out as far as finding parts and finding places that do performance builds on them.If I wanted to have and insane horsepower motor built and installed and tuned,who would be the go to company/shop? Who still does these things for the C4?
Karl Ellwein in southern Maryland can help you out. His motors put out solid power but better yet, he knows what he's doing.

Check it out ... http://www.ellweinengines.com/
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Old Jul 25, 2014 | 11:50 AM
  #22  
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Originally Posted by 1985 Corvette
Another vote for TPI421Vette.
Hey Jamall, your engine should ship out this week.

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Old Jul 26, 2014 | 05:01 PM
  #23  
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Another vote for Jim(tpi421vette).
I have a 396 and a 421 built by Jim. He always answers all my questions and is easy to deal with. As I'm from Canada, shipping has never been a issue
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Old Jul 26, 2014 | 05:47 PM
  #24  
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Lloyd Elliot is the man for LT1 engines
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Old Jul 26, 2014 | 09:11 PM
  #25  
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thats to pretty to hide under a hood!!
Originally Posted by tpi 421 vette
Hey Jamall, your engine should ship out this week.

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Old Jul 27, 2014 | 09:00 AM
  #26  
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Originally Posted by tpi 421 vette
Hey Jamall, your engine should ship out this week.

Ok, here is another vote for you Jim..How you been, havent talked to you for a while...
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Old Jul 27, 2014 | 09:16 AM
  #27  
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Originally Posted by PLRX
The LS7 valve drop has to do with poor driving/gear shifting. I have a friend in San Diego with a stock Z06, and it has 188,000 miles.

Last year we drove to NC for the Coca-Cola 600, drove Tail of The Dragon, and back to California.





No it will not bolt to the LT4 bell-housing, but Im sure there is an adapter plate for sale somewhere, and it will never plug to anything that is 15 years older.
Off the subject of the build, but great photo. I've had my bike there several times and am headed there Wednesday with the Vette. The Tail of the Dragon is an awesome ride.
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Old Aug 5, 2014 | 08:58 AM
  #28  
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Better late than never but another vote for Jim, TPI421VETTE, here. When(not if) i get ready to build another car in the future, and it utilizes a Chevy powerplant, Jim will be building it for me. Hands down best builder i have ever worked with on a personal and professional level!








Last edited by Dr.Huxtable; Aug 5, 2014 at 09:24 AM.
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Old Aug 7, 2014 | 09:26 PM
  #29  
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I dont post too often but cant pass this one up buddy...

Jim Barth (tpi 421 vette) is not only just a good engine builder, but a great guy in general. Jim flew into Canada and helped me to sort out the bugs with the 421. I'll never forget pulling onto the highway with a 2nd to 3rd gear pull and looking over and seeing Jim with a smile as big as mine. The motor he build made torque everywhere and was enjoyable to drive.

I have since sold my C4 and C6 and will get back into it soon after my huge project is finished. But this time I am thinking of an LS3 based car with a power adder (no more C4 boys sorry). In saying that if I ever build another engine I wouldnt hesitate to call Jim.

Jim stayed at my house for a week with my family. I trust him like a brother and so should anyone else. One class act! But be aware. This big man can eat!!!!!!!!!!!!!!
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