Vehicle Compatibility (For LS-Based V8 Engines):
(Fitment Note: Please verify your engine displacement and year carefully. An upgraded torque converter (2500+ stall) and custom ECU tuning are strongly recommended for optimal performance and drivability with this Stage 2 profile.)
For LS1 / LS6 (5.7L V8):
1998-2002 Chevrolet Camaro SS
1997-2004 Chevrolet Corvette C5
1998-2002 Pontiac Firebird Formula / Trans Am
For LS2 (6.0L V8):
2005-2007 Chevrolet Corvette C6
2005-2006 Chevrolet SSR
2006-2009 Chevrolet TrailBlazer SS
2005-2006 Pontiac GTO
For LQ4 / LM7 (4.8L / 5.3L / 6.0L V8 Trucks & SUVs):
1999-2007 Chevrolet Silverado 1500 / 2500 / 3500
1999-2007 GMC Sierra 1500 / 2500 / 3500
2000-2006 Chevrolet Suburban 1500 / 2500
2000-2006 Chevrolet Tahoe
2000-2006 GMC Yukon / Yukon XL
2002-2006 Chevrolet Avalanche
2002-2006 Cadillac Escalade
Interchange/OE Part Numbers: E1840P, PAC-1218, HL2148S, M295.
What's Included in the Package List:
- 1x Sloppy Stage 2 Camshaft (Specs: 228/230 @.050", .585"/.585" Lift, 112 LSA)
- 16x HL2148S Hydraulic Roller Lifters (with Trays)
- 16x PAC-1218 Beehive Valve Springs
- 16x 7.400" Chromoly Pushrods
- 16x Valve Stem Seals
- 1x High-Volume Oil Pump (M295)
- 1x Engine Timing Chain Kit
Camshaft Specification:
-
Camshaft RPM Range: 2200 to 5400 RPM
-
Camshaft Intake Valve Lift: .585"
-
Camshaft Exhaust Valve Lift: .585"
-
Camshaft Advertised Intake Duration: 283°
-
Camshaft Advertised Exhaust Duration: 286°
-
Camshaft Intake Duration at .050": 228°
-
Camshaft Exhaust Duration at .050": 230°
-
Camshaft Lobe Separation: 112°
-
Camshaft Intake Centerline: 108°
-
Camshaft Cam Gear Attachment: 3-Bolt
Shipping & Package Specifications:
-
Item Weight: 27.9 pounds
-
Package Dimensions: 25 x 15.02 x 8 inches
Unlock Massive Power & Aggressive Choppy Idle: Ultimate Sloppy Stage 2 Camshaft Overhaul Kit for GM Gen 3 / Gen 4 LS V8
Are you ready to wake up your GM LS V8 and get that legendary, aggressive "choppy" idle everyone loves? The Sloppy Stage 2 camshaft profile (228/230 @.050", .585"/.585" Lift, 112 LSA) is arguably the most popular, proven, and cost-effective performance upgrade for 4.8L, 5.3L, 5.7L, and 6.0L LS builds. Designed to unlock massive mid-to-high RPM horsepower gains (operating range of 2200 to 5400 RPM), this heavy-duty cam upgrade is perfect for rowdy naturally aspirated street cars, heavy-hitting turbo setups, or aggressive LS swaps.
Dropping a big camshaft into an LS engine requires upgrading the entire valvetrain to prevent catastrophic valve float and lifter failure at high RPMs. Sourcing perfectly matched springs, heavy-duty pushrods, lifters, and a high-volume oil pump separately is incredibly expensive and frustrating. This Ultimate Sloppy Stage 2 Overhaul Kit takes the guesswork completely out of your build by packaging the E1840P-spec camshaft with legendary PAC-1218 beehive springs, high-strength chromoly pushrods, premium hydraulic roller lifters, and the essential M295 high-volume oil pump for ultimate engine protection.
Key Features & Included Components:
Sloppy Stage 2 Camshaft (E1840P): 228/230 @.050", .585"/.585" Lift, 112 LSA, 108 Intake Centerline, 3-bolt gear attachment. Delivers a highly aggressive idle and massive mid-to-high RPM power bands.
PAC-1218 Beehive Valve Springs: Includes 16x drop-in premium beehive springs rated for up to .600" lift to completely eliminate dangerous valve float under heavy boost or high RPMs.
Heavy-Duty Valvetrain Upgrades: Comes complete with 16x 7.400" high-strength chromoly pushrods and 16x HL2148S premium hydraulic roller lifters (along with guide trays) to ensure absolute valvetrain stability.
Lubrication & Timing Overhaul: Protects your critical engine bearings with an upgraded M295 high-volume oil pump. This master kit also bundles a complete engine timing chain kit and 16x fresh valve stem seals for a perfect top-end seal.
(⚠️ CRITICAL FITMENT & INSTALLATION NOTE: This performance camshaft kit is engineered for GM Gen 3 and Gen 4 LS-based V8 engines utilizing a standard 3-bolt cam gear attachment. Custom ECU tuning is ABSOLUTELY REQUIRED after installation to ensure proper idle, fueling, and drivability. Please verify your block's generation and camshaft gear bolt pattern before purchasing.)
Engineered to meet or exceed strict high-performance standards for extreme durability on the street, strip, or track. Upgrade your LS valvetrain the right way with BTSCAR's matched performance components and dominate the competition with absolute confidence.
Free standard U.S. shipping
Eligible orders ship free to physical street addresses in the contiguous 48 states and Washington, DC. Orders normally process within 1 business day; transit is estimated at 3–5 business days, for 4–6 business days total after ordering. Business days exclude weekends and U.S. public holidays. Delivery estimates are not guaranteed. Alaska, Hawaii, U.S. territories, international destinations, P.O. Boxes and APO/FPO addresses are not supported.
Fulfillment and tracking
Eligible orders are fulfilled through Amazon Multi-Channel Fulfillment (MCF). BTSCAR remains the seller and handles customer service. Tracking is emailed after dispatch.
30-day returns and exchanges
Request an eligible return within 30 days of delivery. Standard returns must be new, unused, uninstalled and complete with original packaging. BTSCAR supplies a free prepaid return label, including for eligible change-of-mind returns, and charges no restocking fee. Contact support@btscar-us.com for authorization before returning anything; use only our label and instructions.
Refunds
After an eligible return is received and inspected, the refund is issued to the original payment method within 7 days. Bank posting times may be longer.
Full policies: https://btscar-us.com/policies/shipping-policy and https://btscar-us.com/policies/refund-policy
12-month limited warranty
Eligible products purchased directly from btscar-us.com are covered for 12 months from delivery against verified defects in materials or workmanship under normal automotive use.
Installed products
Installation does not automatically void warranty coverage. Installed items are not eligible for standard returns, but covered defects may qualify for warranty service. Incorrect installation, inadequate lubrication, contamination, overheating, misuse, racing, modifications and normal wear are excluded. Labor, diagnosis, towing and consequential expenses are excluded to the extent permitted by law. Statutory consumer rights remain unaffected.
Claim support
Email support@btscar-us.com with your order number, product or SKU, vehicle details and a description with photos or video. We may request reasonable installation or diagnostic information. Approved claims may receive replacement parts, an equivalent replacement, or a refund if no suitable replacement is available. We provide a prepaid label when an approved warranty item must be returned. Wait for our instructions before shipping.
Customer service
Phone / WhatsApp: +86 158 1943 1912. Daily, 10:00 AM–10:00 PM (GMT+8). We aim to respond within 24 hours; this is a target, not a guarantee.
Full warranty: https://btscar-us.com/pages/warranty-policy