THUMPR 227/241 LSA 107 HYDRAULIC ROLLER CAMSHAFT FORD FE 390 428 BIG BLOCK, Lumpy Choppy Idle

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

Description

COMP CAMS, FE Big Block 390 428 Hydaulic Roller Camshaft, Thumpr, Choppy, Lumpy Idle, 33-600-11

Thumpr™ 227/241 Hydraulic Roller Cam for Ford 352-428. High performance street, stock converter ok, best with 2000+ converter & gears, choppy/thumping idle.

High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.

Engine Family: Ford FE Big Block 352 390 427 428 c.i. 8 Cylinder (1963-1977)

RPM Operating Range: 1,900-5,600

Grind Number: 283THR7

Cam Type: Hydraulic Roller

Lifter Style: Hydraulic Roller

Camshaft Series: Thumpr

Usage: Street/Performance

Advertised Intake Duration: 283

Advertised Exhaust Duration: 303

Intake Duration at .050 Inch Lift: 227

Exhaust Duration at .050 Inch Lift: 241

Intake Valve Lift: 0.557

Exhaust Valve Lift: 0.539

Lobe Separation: 107

Camshaft Gear Attachment:1-Bolt

Specifications

SKU	33-600-11
Barcode #	036584312857
Brand	COMP CAMS
intake valve lift	0.557
Exhaust Valve Lift	0.539
Lifter Type	Hydraulic Roller
Advertised Exhaust Duration	303
Advertised Intake Duration	283
Cam Type	Hydraulic Roller
Exhaust Duration At .050 Inch Lift	241
Intake Duration At .050 Inch Lift	227
Lobe Separation	107
Camshaft Series	Thumpr
Grind Number	283THR7
Basic Operating Rpm Range	1,900-5,600
Lifters Included	No
Valve Springs Required	Yes
Camshaft Gear Attachment	1-Bolt
Camshaft Material	Billet Steel

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THUMPR 227/241 LSA 107 HYDRAULIC ROLLER CAMSHAFT FORD FE 390 428 BIG BLOCK, Lumpy Choppy Idle

RPM Operating Range:1900 to 5600, Lumpy Idle

Description

Specifications

Reviews

Be The First To Review This Product!

Others Also Bought

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33-250-4 Xtreme Energy 240/246 HYDRAULIC FLAT TAPPET CAMSHAFT FORD 390 428 FE BIG BLOCK

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THUMPR 227/241 LSA 107 HYDRAULIC ROLLER CAMSHAFT FORD FE 390 428 BIG BLOCK, Lumpy Choppy Idle

RPM Operating Range:1900 to 5600, Lumpy Idle

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Description

Specifications

Reviews

Be The First To Review This Product!

Others Also Bought

Mutha' Thumpr 235/249 HYDRAULIC ROLLER CAMSHAFT FORD FE 390 428 BIG BLOCK- Thumping Choppy Idle

33-238-4 Xtreme Energy 218/224 HYDRAULIC FLAT TAPPET CAMSHAFT FORD 390 428 FE BIG BLOCK

33-250-4 Xtreme Energy 240/246 HYDRAULIC FLAT TAPPET CAMSHAFT FORD 390 428 FE BIG BLOCK

More From This Category

54-457-11 LSR Cathedral Port 223/231 LSA 112 Hydraulic Roller Cam for GM LS GEN III/IV

21-227-4 Xtreme Energy HI-LIFT 231/237 Hydraulic Flat Cam for Chrysler 383-440

191460 XFI NSR Blower 236/243 Hydraulic Roller Cams for Ford 5.0L Coyote

Ford Cleveland 302 351C Xtreme Energy XE274H 230/236 LSA 110 Hydraulic Flat Tappet Camshaft

Stay Updated

Secure Payment Options

Encrypted Checkout

Service

About Us

Information

Call Now

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Privacy Policy