Frankenstein - LS1 Ported Heads

Marsoni

M251S

$1222.97

Get it in 3 business days with 1 day shipping. Friday, May 29

Frankenstein - LS1 Ported HeadsFrankenstein Engine Dynamics 243 799 LS1 Ported Heads (SET) Fully CNC ported, Stock LS1 Valves, FED . 660 Lift Valve Springs, CNC Valve Job, NO CORE CHARGE! Stage 1 Porting Fully 5 Axis CNC ported, 64cc chamber volume FEDs exclusive high performance porting programs via 5 Axis CNC Intake Exhaust Chambers Pressure Tested for Leak Detection Precision Newen CNC Valve Job, which ensures near zero runout All Cylinder Head Sealing Surfaces Including Ends

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We offer a 30-day return/exchange service after receiving.
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These things are so comfortable and warm. I sleep with them on because I like to have my feet out of the covers. Not too warm...just right. Great quality and fit with a non-slip leather-like sole. I'll keep ordering these ahead of time to make sure I'll always have a fresh pair when I wear them out. I wear them EVERY NIGHT and keep them on all morning. Life-changer! The BEST EVER!!

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Reviewed in the United States on March 4, 2026