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Low Compression Head Mod // 2007-2017 ZR/F/XF/M 800/8000

SKU: ACFHM-800-XXX
NOTE: This is for the head machining only- you must send your head in or purchase one outright!
Price:
$99.95

Compression Ratio:
Core Options:
Qty: - +
   - OR -   

LOW COMPRESSION HEAD MOD

We can machine your stock head's combustion chamber to lower the compression ratio to 12:1 or 11:1 so you can run increased timing with our Stage 3 Pipe, or for Supercharger or Turbo applications.

Note: 2007-2009 non-HO engines are 12:1 stock.


Core Options:

1. Send us your stock head core and we will send you the Modified Head once we receive it.

2. Purchase the Modified Head outright and we will send it out right away. You can keep your stock head, or ship it to us and we will credit you back when we receive it!

 

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⚠WARNING: Cancer and Reproductive Harm — Speedwerx, Inc. Prop65 Warnings or www.P65Warnings.ca.gov.
Related Products
Stealth Head Mod // 2007-2017 ZR/F/XF/M 800/8000
SKU: ACFHM-800
$177.00
This is for the Stealth Head Mod only- you need to order two domes and two o-rings as well!
Core Options:
Billet Domes (Pair):
O-Rings (Pair):

These items are intended for closed-course competition only. Alternation of emissions-related components can constitute violation of federal and/or state laws. Substantial fines and penalties can result if used for other than closed-course competition use.