Jesse's 200mph Challenger - Hot Rod Magazine - January 2014
BES/HPP Street Outlaw Challenger
justin-mshs-2013-champ
Bradley Built Engines | Gen III Hemi Entry featuring THITEK Heads 2013 Amsoil Engine Masters Challenge
Thitek GIIIH "Bear" | Custom Heads
Thitek GIIIH "Bear" - Assembled CNC Complete Dual Spring
Thitek GIIIH "Bear" - Assembled CNC Complete Beehive
Thitek GIIIH "Bear" - Bare CNC Ported
Thitek GIIIH "Bear" | Cast Porters
Thitek GIIIH "Bear" Cylinder Heads
Jesse's 200mph
Challenger Another ThiTek Customer
Featured in Hot Rod Magazine
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BES/HPP
Street Outlaw Challenger - NMCA Digital Article read more >
Congratulations Justin 2013 THITEK Stroker Class Champ
Modern Street Hemi Shootout
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Bradley Built
& THITEK Heads Amsoil Engine Masters Challenge read more >
GIIIH | Custom Heads For Extreme Builds Requiring Heads to Match. read more >
GIIIH
CNC Ported | Dual Springs CNC Ported | Fully Assembled | Dual Springs
The Ultimate Street/Strip Performance Heads.
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GIIH | CNC Ported | Beehive CNC Ported | Fully Assembled | Beehive Springs
The Ultimate Street/Strip Performance Heads.
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Thitek GIIIH | CNC Ported CNC Ported Heads, Ready for Your Parts Package. read more >
GIIIH | Cast Porters An Blank Canvas, Ready for Porting. read more >
Thitek GIIIH "Bear" The Only 100% Aftermarket Gen III Hemi Heads read more >

THITEK Performance

THITEK offers the only unique cast cylinder heads for the Gen III Hemi platform. Our commitment to quality, engineering, performance and customer service is second to none.

THITEK "Bear" | Gen III Hemi Heads

Answering the Hemi Call: New Cast, Real Options

The THITEK GIIIH "Bear" is the first aftermarket available cylinder head for the Late Model Hemi platform. A true bolt on cylinder head design that replaces the factory cylinder head with no other modifications needed.

The ultimate in performance upgrade for your G III / IV late model engine. Airflow has been increased from over 75 cfm on the 2.125" 200 cc head to over a whooping 100 cfm on the 2.165" 205cc head over factory as cast cylinder heads. A high flow exhaust port design increases airflow over 50 cfm over the factory designs.

GIIIH "Bear" Standard Versions

Cast Porters

Thitek GIIIH "Bear" | Cast Porters
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CNC Ported

Thitek GIIIH "Bear" - Bare CNC Ported
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CNC Ported | w/ Beehive

Thitek GIIIH "Bear" - Assembled CNC Complete Beehive
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CNC Ported | w/ Dual Springs

Thitek GIIIH "Bear" - Assembled CNC Complete Dual Spring
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Custom Heads

Thitek GIIIH "Bear" | Custom Heads
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Recent News

Jesse's 200mph Challenger

Jesse's 200mph Challenger - Hot Rod Magazine - January 2014

Hot Rod Magazine is highlighting another top build featuring ThiTek heads, Jesse Iwuji’s 200mph Challenger. Congratulations to Jesse for breaking the 200mph wall. We are extremely proud our heads were chosen to be a part of Jesse’s build and wish him the best of luck at his next top speed event.

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BES/HPP Street Outlaw Build

BES/HPP Street Outlaw Challenger

The Street Outlaw build by BES/HPP for Rob Goss is featured this month on the NCMA website. This is an all out build featuring Thitek’s Bear GIIIH Cylinder Heads.

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PRI Indy 2013

Thitek Attends PRI Indy 2013

Thitek is on hand for the PRI show in Indianapolis (December 12th – 14th). Drop by booth #8301 and meet Craig Thibeau, owner and chief cylinder head tech at Thitek.

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THITEK Photo Galleries

GIIIH | Cast Porters Gallery

Thitek GIIIH "Bear" - Bare Porters Cylinder Head Gallery
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GIIIH | CNC Ported Gallery

Thitek GIIIH "Bear" - Bare CNC Ported Cylinder Head Gallery
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GIIIH | CNC Ported Beehive Gallery

Thitek GIIIH "Bear" | Complete CNC Beehive Spring Cylinder Head Gallery
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GIIIH | CNC Ported Dual Spring Gallery

GIIIH “Bear” | Assembled CNC Ported Dual Spring Cylinder Head Gallery
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GIIIH | Custom Head Gallery

Thitek GIIIH "Bear" - Custom Cylinder Head Gallery
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THITEK Videos

VMP - Fall 2013 Video

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