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Engines and Components› Camshafts and Valvetrain

Isky

1.240 Dual Valve Springs

$464.00 $191.33 Save $272.67

SKU: I00P 4005

In Stock
In Stock
Ships by Sep 19
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

Our complete line of valve train parts to help your Flathead Ford V8 run on unleaded fuel. These super heavy duty dual valve springs are made from top-quality chrome silicon steel and are designed to work with stock 1932-1953 Ford retainers PLUS our 450-87F retainer adapters. Suggested for 'full-race' camshafts only. Must use 450-87F retainer adapters plus the correct stock retainers for the valves being used.
Show original supplier description

Part #: 4005

Valve Spring - Dual Spring - 250 lb/in Spring Rate - 0.960 in Coil Bind - 1.240 in OD - Set of 16

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandIsky
Part NumberI00P 4005
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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