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** CLOSED UNTIL 12TH JANUARY - SHIPPING STARTS 12TH JANUARY 2026**

Proline LS1 LS2 LS3 1.300" od, 415lbs, 160lbs @ 1.800" Installed 0.670" lift. Polished Hydraulic Roller Dual Valve Springs;

SKU: DRP-8415P-16

Proline LS1 LS2 LS3 1.300" od, 415lbs, 160lbs @ 1.800" Installed 0.670" lift. Polished Hydraulic Roller Dual Valve Springs;

LS Valve Springs Polished Proline Series 0.670" Max lift

$479.38

or 4 payments of $119.84 with Info

IN STOCK FREE SHIPPING

*Free shipping on orders over $200

Description

DRP High RPM Polished LS Dual Valve Springs fits LS1, LS2, LS3.

Also suitable for Aluminium Heads - Chevy 350 & 302 347 Windsor Hydraulic Roller & Solid Flat Tappet.

Race/Endurance high performance series valve springs by PAC Springs

PAC dual valve springs LS small OD style, Polished suits Hydraulic Roller Dual Valve Springs.

Installed Height: 1.800"

Seat Load: 160lbs @ 1.800" / 181lbs @ 1.750"

Open pressure @ .620" lift: 420lbs open

Spring Rate: 415 lbs

Coil Bind Height: 1.070"

Max Lift: .670" @ 060" safety when installed at 1.800"

MADE IN U.S.A BY PAC SPRINGS.

Recommended Parts:

Retainers:

11/32 Valve Stem: - use DRP-RT1132-16
8MM Valve Stem: - use DRP-RT8mm-16

Spring Locators:

0.500" Guides for LS1, LS2, LS3 use: DRP-SL500-16
0.500" Guide inc Seal for LS1, LS2, LS3 use: DRP-LSVSS-DS
0.570" Guides for aftermarket cylinder heads use: DRP-SL570-16

Load Chart:

Spring Height Inch	Load lbs
1.950	97
1.900	118
1.850	139
1.800	160
1.750	181
1.700	202
1.650	223
1.600	244
1.550	264
1.500	285
1.450	306
1.400	327
1.350	348
1.300	369
1.250	390
1.200	411
1.150	431
1.100	452
1.067	Coil Bind

Specifications

SKU	DRP-8415P-16
Brand	DRP
Outside Diameter	1.300
Inside Diameter	0.680
Seat Height	1.800
Damper	No
Seat Pressure	160
Number Of Springs	2
Valve Spring Series	Race/Street
Coil Bind Height	1.07
Spring Rate	418

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Proline LS1 LS2 LS3 1.300" od, 415lbs, 160lbs @ 1.800" Installed 0.670" lift. Polished Hydraulic Roller Dual Valve Springs;