Frankenstein Engine Dynamics LLC

Frankenstein Engine Dynamics LLC Frankenstein Engine Dynamics LLC.
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Our EXTREMELY versatile FED/PAC .700 Lift Dual Spring Kit now available for purchase as its own product! This spring kit...
09/02/2026

Our EXTREMELY versatile FED/PAC .700 Lift Dual Spring Kit now available for purchase as its own product! This spring kit works great for high-RPM, N/A power, and boosted setups. Frankenstein and PAC Racing worked together to bring a very versatile spring that outperforms the typical polished .660 springs on the market. We offer this spring kit for stock valve guide (.505) and bronze guide (.565) applications.

Link:https://frankensteined.net/products/fed-pac-ls-dual-spring-kit-700-lift

Advanced Porting Services available for LS, Coyote, Hemi, and many more! Don't see your engine listed on our website? No...
09/01/2026

Advanced Porting Services available for LS, Coyote, Hemi, and many more! Don't see your engine listed on our website? No problem! Message, Call or email us and we will look to see if we have a program to help you make more power and win more races!

Link- https://frankensteined.net/

this week is Vivian Stevens and her awesome Daily Driver Mustang that took on Outlaw Armageddon this weekend and took ...
08/31/2026

this week is Vivian Stevens and her awesome Daily Driver Mustang that took on Outlaw Armageddon this weekend and took home the win!

The build is:
Stock block w/ rods & pistons
FED Ported Coyote heads(offered for Gen 1-4)
On3 68/70 turbo’s
Snow fuel system
Th400
A healthy 4000 lb on Kelltrac suspension

HEMI Porting Available for 5.7, 6.1, 6.2 and 6.4! Turning your OEM heads into some performance machines!!!FED specialize...
08/27/2026

HEMI Porting Available for 5.7, 6.1, 6.2 and 6.4! Turning your OEM heads into some performance machines!!!
FED specializes in high performance cylinder head porting for racing applications. OEM and Aftermarket heads enter FED’s advanced manufacturing processes proven to generate the most efficient power in every application. We take great pride in our work and our attention to detail is unmatched in this industry. With over 100 years of combined team experience we know how to Win! FED’s Porting Process Includes:

Teardown/Clean/Inspect
FED’s exclusive high performance porting programs via 5-Axis CNC – Intake/Exhaust/Chambers (Some Chambers Don’t Apply)
Pressure Tested for Leak Detection
Precision Newen CNC Valve Job, which ensures near zero runout
All Cylinder Head Sealing Surfaces Including Ends are PCD Machined, Making Sure all Surfaces are True
Meticulous Hand Blending and Deburr
PCD Surfacing Optimal For Modern MLS Head Gaskets
Final Wash and Assembly
Extreme Attention to Detail and Quality Control at Every Stage

Link:
https://frankensteined.net/collections/hemi

A good example investing and insuring your product! If you plan on pushing the limits of performance, purchasing upgrade...
08/25/2026

A good example investing and insuring your product! If you plan on pushing the limits of performance, purchasing upgrades that are intended to handle the wear and abuse is always going to be well worth it 💪🏼

M115 6-Bolt Cathedral Port Cylinder Head(yes can be used on a 4 bolt block)small bore BIG power 3.780″ Bore Minimum ...
08/24/2026

M115 6-Bolt Cathedral Port Cylinder Head(yes can be used on a 4 bolt block)
small bore BIG power
3.780″ Bore Minimum
Fully CNC ported, 64cc chamber volume
225 or 240cc intake port, 96cc exhaust port and 15° valve angle
0.625 Deck Thickness
High Quality Components:
FED Stainless Steel Severe Duty Valves
Custom PAC .700″ Lift Valve Springs
Titanium Retainers
Note: Chamber width requires 4.030 bore gasket minimum
Sold Per SET
The Monster Series is the first threshold into HP creation far beyond any OEM head.
Frankenstein introduced another level of horsepower when The Monster was brought to life. FED poured our arsenal of precision engineering into a common cylinder head and woke the industry. Intake and exhaust chambers are 5-Axis CNC ported with our latest high performance program, meticulously hand blended and deburred. Our strict quality control processes ensure extreme attention to detail and precise tolerances. High quality components include FED’s premier stainless steel severe duty valves, custom PAC .700” lift valve springs, titanium retainers, bronze guides .
Link:
https://frankensteined.net/products/m115

Coyote guys! What kind of new Heads/Intake would you like to see come to market? 🤔Our Predator intake was originally int...
08/21/2026

Coyote guys!
What kind of new Heads/Intake would you like to see come to market? 🤔

Our Predator intake was originally introduced in 2019... It might be time for something new

08/20/2026

Coming soon 🫣

Address

2410 Ranger Highway
Weatherford, TX
76088

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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