Mangum Racing

Mangum Racing Offering a full line of CNC-ported cylinder heads, including aftermarket and OEM stock castings.
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Our current turn around time is under two weeks for customer supplied castings! It’s a great time to knock out your port...
05/28/2026

Our current turn around time is under two weeks for customer supplied castings! It’s a great time to knock out your port work!

05/27/2026
Another BEAST gets our 267ls3 15 degree. Can’t wait to see this one tear up the streets….
05/26/2026

Another BEAST gets our 267ls3 15 degree. Can’t wait to see this one tear up the streets….

Throw ALL the boost at these! 11 degree headsChamber softener Thicker deck surface Larger spring pocketsContact me for p...
05/25/2026

Throw ALL the boost at these!
11 degree heads
Chamber softener
Thicker deck surface
Larger spring pockets
Contact me for pricing

Quality parts come from months of development and the best machines…We pride ourselves in making parts with passion. Tha...
05/24/2026

Quality parts come from months of development and the best machines…
We pride ourselves in making parts with passion. That makes all the difference in the world.

Gm ls7GuidesReamingPortingCnc valve jobDeckingAssembly Qc checkReady to roll
05/14/2026

Gm ls7
Guides
Reaming
Porting
Cnc valve job
Decking
Assembly
Qc check
Ready to roll

Ported 6.2 Lt headsFully assembled with pac .660 spring kitTitanium retainers
05/12/2026

Ported 6.2 Lt heads
Fully assembled with pac .660 spring kit
Titanium retainers

We now have core lt1 ported heads for exchange! Faster turn around!
04/29/2026

We now have core lt1 ported heads for exchange! Faster turn around!

Address

113 Cantera Way
Georgetown, TX
78628

Website

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