PROMAXX Performance PMX8401 GM Ls Series Gold Series Valve Spring & Retainer Kit

Skip to product information
1 of 2

PROMAXX Performance

PMX8401

Regular price $671.70 AUD
Regular price Sale price $671.70 AUD
Sale Sold out
Tax included. Shipping calculated at checkout.
View full details

PROMAXX Performance PMX8401 GM Ls Series Gold Series Valve Spring & Retainer Kit

Item Description

Looking for performance? PROMAXX Performance Gold Series valve spring and retainer kits are probably one of the most widely used and trusted "drop-in" dual spring kits. They will work with both stock and aftermarket rocker arms and there is no cutting or machining needed of the stock spring pocket. PROMAXX Performance Gold Series consists of Gold dual springs, titanium retainers, machined locks, machined spring bases, and 16 Viton rubber seals. Go for the gold Gold Series valve spring and retainer kits from PROMAXX Performance.



Application: GM LS Series V8.

Number of Springs Per Valve: Dual
Valve Spring Style: Standard
Installed Height (in): 1.800 in.
Seat Pressure at Installed Height (lbs): 135 lbs.
Open Height (in): 1.150 in.
Open Pressure (lbs): 375 lbs.
Valve Stem Diameter (in): 0.315 in.
Valve Stem Diameter (mm): 8.00mm
Retainers Included: Yes
Retainer Material: Titanium
Locks Included: Yes
Lock Style: 7 degree
Lock Groove Quantity: 1-groove
Lock Material: Steel
Outside Diameter of Outer Spring (in): 1.290 in.
Damper Spring Included: No
Valve Springs Coated: Yes
Valve Stem Seals Included: Yes
Quantity: Sold as a kit.
Notes: Kit includes 32 locks, 16 retainers, 16 valve seals, and 16 seats.

Manufacturer Information

  • Manufacturer: PROMAXX Performance
  • Manufacturer Part Number:
  • UPC:
  • Colour:
  • Additional Information:
  • Please Note: Images are for representation only and may differ than the actual product - please contact us if you require an exact photo

After more details? Contact Us

  • Quality Brands

    We only sell quality genuine products - with brand names you can trust, you know that you are getting the best products for your build complete with limited manufacturers warranty

  • Fast & Efficent

    We use a number of great couriers to get your parcel to you ASAP! In a rush? Give us a call and ask about an 'expedited order' or enquire on current ETAs!

  • Zero Regret - Hassle Free Returns

    We accept returns for up to 30 days, our returns are hassle free when following our return guidelines and policies and most items can even come back on our capped price Australia Post returns, making it a cost effective process to send your item back if it's not quite right.

  • Experienced Team

    Our team are all passionate about the Automotive Industry and involved with lots of avenues of Motorsports. We have mechanics, engine builders and die-hard enthusiasts here to answer your questions or give you expert advice for your ride - just give us a call!

1 of 4

Found a better deal elsewhere?

We try to keep our pricing competitive for all our customers - if you have found a better deal elsewhere, send us an email here and we will do our best to match offers.
(Ensure you include the part number and a link to the competitors price!)