Streetline, Dual Valve Springs KIT suits Hydraulic FLAT TAPPET. 125lbs@1.800" 336lbs/in Fits 350 Chevy, 302W Windsor, Chrysler 360, Holden 253 308.

DRP Dual Valve Springs Kit, Hydraulic Flat Tappet Camshafts. 11/32" valve stem. 

Fits* Alloy Heads - 350 Chevy & 302 Windsor Small blocks & 308 Holden*/Aluminium Holden heads.

High Performance Street Series For Hydraulic Flat Tappet Camshafts 

Built Tough, Real Value, No Gimmicks!

Upgrade your old-school muscle with modern valvetrain technology.
Streetline’s lightweight, small-diameter valve springs reduce valvetrain mass, cut drag, and unlock higher RPM potential with more stability and less wear.
Engineered for efficient valvetrain control, these valve springs deliver faster revs, smoother lift curves, and serious street-strip performance — all without the high-end price tag.

Less weight. More control. Serious power.

Manufactured from premium materials and the latest processing procedures, these valve springs are engineered for reliability and packed with serious value!

DRP Dual Valve Springs are manufactured in the USA from PAC wire and subject to extensive quality control testing to deliver superior strength, durability and valve train stability. The dual spring design creates a stronger valve spring that can easily handle increased lift found in modern aggresive camshaft applications. DRP Dual Valve Springs exceed the expectations of today’s engine builders and racers.

Engineered for the street and built to perform, it’s the perfect choice for street machines, cruisers, and classic V8s that take the punishment of everyday performance. Build with confidence & without breaking your budget use DRP Streetline.

Built tough. Priced tough. Ready to run.

Whats in the DRP Hydraulic Flat Tappet Kit

• DRP-8336S-16 Valve Springs by PAC Racing
• Comp Cams Steel Retainers
• Comp Cams Steel Locators
• DRP Street Locks
• DRP Valve Stem seals

Installed Height: 1.800"

Max Lift: 0.655" @ .060" safety

Coil Bind Height: 1.082

O.D. of Outer: 1.275"

I.D. of Inner: 0.694"

I.D. of Outer: 0.950"

Spring Style:  Dual

Spring Rate:  336 lbs/inch

Seat Pressure:  125lbs@1.800"

Dampener: Not required

Matching Retainers: DRP-RT1132 (11/32" stem 7 degree)

Matching Locators: DRP-SL570   (Bronze .570" guides (Alloy heads)

Installation Notes: *Cast Iron cylinder heads will require machine work.

• Holden 308 heads will need spring pads machined down to fit a 1.800" installed - use Comp Cams cutter #4716CPG - Cutter is 1.320" OD x 0.630" guide.

Spring Height Inch	Load lbs
1.950	75
1.900	91
1.850	108
1.800	125
1.750	142
1.700	159
1.650	175
1.600	192
1.550	209
1.500	226
1.450	243
1.400	260
1.350	276
1.300	293
1.250	310
1.200	327
1.150	344
1.082	Coil Bind

NOTE: KIT IMAGE IS GENERIC AND NOT OF ACTUAL ITEM - IMAGE OF ACTUAL SINGLE VALVE SPRING IS CORRECT.