3SX Heads Stage 1 - Valve Job with Hi-Rev Valve Springs Kit


3SX Heads - "Stage 1"
Valve Job + Hi-Rev Spring Kit

These "Stage 1" heads offer fully refreshened heads with our hi-rev valve spring kit already installed.  They are stock heads that have been disassembled and refreshed back to "like new" condition.  The guides are spec'd-n-check'd and replaced if necessary.  New valve stem seals are installed.  And they are given a valve job to fully reseat the valves.  Stock valves are re-installed. And our upgraded valve spring kit is installed.  And finally they are given a fresh decking to ensure a flat surface and ready to install in your engine!

Installing fresh heads with the upgraded valve springs is a great way to properly support upgraded cam shafts or overclocking your ECU to go beyond the stock 7300 rev limiter.

7/4/18 -Turnaround time is typically 5-6 weeks depending on how busy our machine shop is.  We will notify you if we do not have these in stock and ready to ship or do not have any of your style to be sent to the machine shop.  If they are not in stock, you can send yours in and we will process your heads and you will get back the ones you sent in.

CORE CHARGE: A $750 Core Charge is attached to the price when added to your shopping cart. This amount is refunded to you in the same method you paid (back to card or Paypal account, or check for Money Order payments) once 3SX receives your core parts in rebuildable/reusable condition per the core parts policies. You can send your heads in advance to avoid the core charges.

3SX Core Parts Return Form
Need a copy of the Core Return Form? Download and print it here!


NOTE: Price is for a PAIR of heads.