High Performance Injuns

High Performance Injuns A Magical Place Where Pure Pontiac Power Rules & Injunuity Is The Chief Medicine Man's Chosen tool.

06/02/2026

Mike’s 400 Classic Muscle I***n. Pictures of completed ‘79 Trans Am in the comments!
PontiacSpeedShop.com

05/31/2026

Some shops are focused on building engines cheaper. Our focus is on building engines that are the best within your budget. You can be a proud partner in our Pontiac Passion by Following and Sharing with others. Thanks!
High Performance I***ns PontiacSpeedShop.com

We get a lot of calls about building factory style engines. Std 350s, 400s, 428s and 455s.We build these Classic Muscle ...
05/30/2026

We get a lot of calls about building factory style engines. Std 350s, 400s, 428s and 455s.

We build these Classic Muscle long blocks with the same care as our Stroker and SuperStroker engines. If you want to run the factory correct cast iron heads we use dished pistons with file fit rings to keep the compression pump gas friendly and incorporate forged connecting rods and hydraulic roller cams for reliability. The rotating assembly has the proper clearances and is precision balanced.

Your heads get all the good stuff with new stainless swirl polished valves, new guides, hyd roller valve springs, retainers and locks, roller tip rockers, surfaced and new correct factory valve covers.

We generally provide all the cores and in many cases we can even provide the correct coded block and heads for your application.

These engines are sold as a long block from the new oil pan to the new valley pan. We can provide intakes, carburetors, ignition systems, headers or exhaust manifolds too.

These Classic Muscle long blocks typically sell for $11500 with no core charges and crated delivery in the U.S. 48 is a flat $500.

All the good things you remember about these classic engines with added performance and reliability of today's technology at a very affordable price.

PontiacSpeedShop.com
1-463-PONTIAC

05/28/2026

This little video has been viewed over 1,000,000 times! If you’d like to see more like this but with better sound, Follow Us and Share with a Friend or two.
High Performance I***ns

Happy Memorial Day from Your Friends at PontiacSpeedShop.com
05/25/2026

Happy Memorial Day from Your Friends at PontiacSpeedShop.com

Number One Qualifier at St. Louis. How about a 10.000 on a 10.00 index! Proud of this Man and proud to help.PontiacSpeed...
05/25/2026

Number One Qualifier at St. Louis. How about a 10.000 on a 10.00 index! Proud of this Man and proud to help.
PontiacSpeedShop.com

05/25/2026

Dwight shaking the dust off at St. Louis
Small Tire Pro Stock Champion
PontiacSpeedShop.com

Remember those that paid the ultimate price so you could be free.
05/25/2026

Remember those that paid the ultimate price so you could be free.

Some pictures of the new ‘65 GTO of Mike Davis. Mike did all the body work and paint himself as well as tig welding in t...
05/24/2026

Some pictures of the new ‘65 GTO of Mike Davis. Mike did all the body work and paint himself as well as tig welding in the Chromoly Roll Cage with swing out bars. After all it is a street car! Runs in the 9s through the mufflers!
PontiacSpeedShop.com

05/24/2026

Mike’s new ‘65 GTO at St. Louis.

Address

1630 E. Northfield Drive , Ste 1100
Brownsburg, IN
46112

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