Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
PAC Racing 1200 Series Valve Springs PAC-1236X-16
Part Number: RSC-PAC-1236X-16
PAC Racing 1200 Series Valve Springs
Valve Spring, 1200 Series, Dual, 1.310 in. Outside Diameter, 520 lb/in., 0.665 in Inside Diameter, Set of 16
See More Specifications
|
Check the Fit
Estimated Ship Date: Oct 27, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
PAC-1236X-16
Part Type:
Product Line:
Summit Racing Part Number:
RSC-PAC-1236X-16
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.650 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.310 in.
Coil Bind Height (in.):
1.080 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
520 lbs./in.
Inside Diameter of Outer Spring (in.):
0.925 in.
Inside Diameter of Inner Spring (in.):
0.665 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Quantity:
Sold as a set of 16.
Make:
CHEVROLET
Engine Family:
Chevy small block Gen III/IV (LS-based engines)
Installed Height (in.):
1.800 in.
Seat Pressure at Installed Height (lbs.):
156 lbs.
Open Height (in.)(application):
1.150
Open Pressure (lbs.):
495 lbs.
Remanufactured:
No
PAC Racing 1200 Series Valve Springs
PAC Racing 1200 Series valve springs are great as replacement parts--or for pushing above and beyond the performance of OEM engines. Select them when you're upgrading camshafts or doing engine rebuilds. The 1200 Series use a premium alloy that outperforms automotive industry standards; and PAC Racing processes the alloy to aerospace shot-peening standards to achieve superior fatigue dependability. This ensures that the springs maintain the load needed to withstand rigors of both street and mild racing applications.
Applications
Loading...
Loading...
Questions & Answers
Ask a Question
What type of question would you like to submit?
I have a Customer Service question
(order, shipping, returns, protection plans, etc.). Customer Service Question
(order, shipping, returns, protection plans, etc.). Customer Service Question
- OR -
I would like to ask other customers
a question about this Product. Product Related Question
a question about this Product. Product Related Question
Loading...
Reviews Write a Review
Some parts are not legal for use in California or other states with similar laws / regulations
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Email this page
