Availability
1983 Howards Cams Parts and Accessories
Camshaft, Mechanical Flat Tappet, Advertised Duration 299/305, Lift .561/.580, Chevy, Big Block, Each
Part Number: HRS-122132-12
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Flat Tappet, Advertised Duration 295/303, Lift .629/.623, Chevy, Big Block, Each
Part Number: HRS-122322-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Retrofit, Hydraulic Roller Tappet, Advertised Duration 306/312, Lift .680/.680, Chevy, Big Block
Part Number: HRS-122455-10
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Retrofit, Hydraulic Roller Tappet, Advertised Duration 306/312, Lift .680/.680, Chevy, Big Block
Part Number: HRS-122455-12
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Hydraulic Flat Tappet, Advertised Duration 263/263, Lift .476/.476, Chevy, Big Block, Each
Part Number: HRS-122511-11
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Retrofit, Hydraulic Roller Tappet, Advertised Duration 280/280, Lift .555/.555, Chevy, Big Block
Part Number: HRS-123315-10
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Retrofit, Hydraulic Roller Tappet, Advertised Duration 306/312, Lift .657/.640, Chevy, Big Block
Part Number: HRS-123335-12
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, 4/7 Swap, Mechanical Roller Tappet, Advertised Duration 301/309, Lift .765/.737, Chevy, Big Block, Each
Part Number: HRS-124213-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, 4/7 Swap, Mechanical Roller Tappet, Advertised Duration 305/309, Lift .771/.737, Chevy, Big Block, Each
Part Number: HRS-124223-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, 4/7 Swap, Mechanical Roller Tappet, Advertised Duration 309/315, Lift .810/.765, Chevy, Big Block, Each
Part Number: HRS-124243-10
Not Yet Reviewed
Camshaft, Mechanical Roller Tappet, Advertised Duration 318/319, Lift .765/.737, Chevy, Big Block, Each
Part Number: HRS-121623-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Roller Tappet, Advertised Duration 318/319, Lift .765/.737, Chevy, Big Block, Each
Part Number: HRS-121623-10
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Roller Tappet, Advertised Duration 289/295, Lift .725/.725, Chevy, Big Block, Each
Part Number: HRS-121633-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Roller Tappet, Advertised Duration 297/309, Lift .703/.703, Chevy, Big Block, Each
Part Number: HRS-121663-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Roller Tappet, Advertised Duration 297/309, Lift .680/.680, Chevy, Big Block, Each
Part Number: HRS-121663-10
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Roller Tappet, Advertised Duration 297/309, Lift .680/.680, Chevy, Big Block, Each
Part Number: HRS-121663-12
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Roller Tappet, Advertised Duration 305/309, Lift .731/.737, Chevy, Big Block, Each
Part Number: HRS-121673-10
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Hydraulic Flat Tappet, Advertised Duration 294/301, Lift .570/.578, Chevy, Big Block, Each
Part Number: HRS-121721-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Hydraulic Flat Tappet, Advertised Duration 294/301, Lift .570/.578, Chevy, Big Block, Each
Part Number: HRS-121721-10
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Camshaft, Hydraulic Flat Tappet, Advertised Duration 294/301, Lift .570/.578, Chevy, Big Block, Each
Part Number: HRS-121721-12
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Flat Tappet, Advertised Duration 283/289, Lift .578/.623, Chevy, Big Block, Each
Part Number: HRS-121742-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, Mechanical Roller Tappet, Advertised Duration 317/343, Lift .850/.810, Chevy, Big Block, Each
Part Number: HRS-121803-16
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, 4/7 Swap, Mechanical Roller Tappet, Advertised Duration 309/315, Lift .765/.714, Chevy, Big Block, Each
Part Number: HRS-124023-08
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Camshaft, 4/7 Swap, Mechanical Roller Tappet, Advertised Duration 309/315, Lift .765/.714, Chevy, Big Block, Each
Part Number: HRS-124023-10
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Camshaft, 4/7 Swap, Mechanical Roller Tappet, Advertised Duration 317/327, Lift .810/.765, Chevy, Big Block, Each
Part Number: HRS-124033-12
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
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