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COMP CAMS LS ULTRA-GOLD ARC ROCKER ARMS
Non-adjustable, bolt-on, Ultra-Gold™ ARC Series Aluminum Rockers are more durable than both stock rockers and other aftermarket aluminum rocker designs. A CNC-extruded body provides increased strength and stiffness, which is especially important for higher-load springs. The roller tip meanwhile is an upgrade over the stock slider, which is not meant for use with high-lift cams and springs that see increased load. What’s more, a larger-than-stock billet trunnion package features captured needle bearings to help prevent failure. These pedestal-mount rocker arms are offered in 1.72 and 1.82 ratios, with the 1.82 option providing a convenient way of increasing valve lift without having to undergo a full cam swap. The rockers include pedestal mounts and bolts, and just like the OEM LS rockers, are a non-adjustable, bolt-down design. COMP Cams® LS Non-Adjustable Ultra-Gold™ ARC Series Aluminum Rocker Arms also feature a limited lifetime warranty. Aftermarket valve covers, valve cover spacers, or valve cover clearancing may be required.

  • Large billet trunnion w/ captured needle bearings help prevent rocker failure
  • CNC-extruded body is much stiffer & stronger than competing aftermarket aluminum rockers
  • Limited Lifetime Warranty; So strong that we warranty the rocker bodies against breakage for life
  • Offered in 1.72 & 1.82 ratios (stock is 1.7); 1.82 ratio is easy way to increase valve lift
  • Designed for LS1, LS2, LS6 & LS-based truck applications (4.8/5.3/6.0L)*
  • Roller tip is an upgrade over stock slider tip & reduces friction

$479.95
DART SHP LSNEXT ENGINE BLOCK (LSNext SHP)
Designed for high performance and medium duty applications, the SHP LS Next Block is the ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts.

• Dart priority main oiling system with provisions for stock oil filter mounting.

• Siamesed cylinder bores with thick walls.

• Cylinder barrels extended .375” at the bottom of the bores.

• Thick decks ensure reliable head gasket seal.

• Blind head bolt holes.

• 6 bolt per cylinder capability.

• Scalloped water jackets increase flow around cylinders for better cooling.

• Clearanced up to 4.100” stroke w/ steel rods.

• Splayed outer bolts on middle main bearing caps.

• Provisions for LSX roller lifters and cam.

• Uses OE front and rear covers.

• All OE bolt holes for starter, water pump, etc.

• Parts kit sold separately (PN: 32000018).

$2,325.00
DART PRO1 LS3 15° 280cc (LS3 compatible) (Pro1LS3)

Recommended for engines with 4.000” bore or larger. Maximum competition, comp/modified drag racing, circle track, and heavy duty applications. Dart’s new LS based PRO1 LS 15° 280cc Aluminum square port cylinder head for GM LS series small block V8 engines take performance to the next level. Offers higher performance and more versatility than factory designs. The 15° based high performance cylinder head has better airflow, more efficient combustion chambers and more user friendly features than production LS castings. The Dart PRO1 LS 280cc cylinder head retains stock valve angles, stock valve locations and stock accessory mounting holes to make installation easy. Virtually everything else has been improved. Heads are sold individually.

Material: RMR Cast Aluminum Alloy Valve angle: 15° Intake port volume: 280cc Intake valve: 2.165” Exhaust valve: 1.600” Chamber Volume: 68cc

$775.00
COMP CAMS LS BEEHIVE VALVESPRING KIT - TOOL STEEL RETAINERS
This Beehive™ Valve Spring Kit for LS engines is designed for hydraulic roller cams and includes carefully matched Beehive™ Springs, retainers, locks, seals and spring seats. With a .625" maximum lift, these Beehive™ Valve Springs deliver increased valve train stability and a much lighter valve train. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and retainer. The unique Beehive™ shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life.

  • 26918-16 Beehive™ Valve Springs
  • 1772-16 Lightweight Tool Steel Retainers
  • 623-16 7° Steel Valve Locks
  • 511-16 Valve Seals
  • 4705-16 Spring Seats

$425.00
COMP CAMS LS DUAL VALVESPRING KIT - TOOL STEEL RETAINERS
This Dual Valve Spring Kit for LS engines includes carefully matched Dual Valve Springs, tool steel retainers, locks, seals and spring seats. With a .660" maximum lift, these COMP Cams® Dual Valve Springs for race applications are manufactured from Super Clean™ wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter the application. The dual spring design creates a stronger valve spring that can easily handle the increased lift found in extreme stress applications. COMP Cams® Dual Valve Springs exceed the expectations of today’s engine builders and racers.

  • 26925-16 Street/Strip Dual Springs
  • 1717-16 Lightweight Tool Steel Retainers
  • 623-16 7° Steel Valve Locks
  • 511-16 Valve Seals
  • 4705-16 Spring Seats

$415.00
COMP CAMS LS BEEHIVE VALVESPRING KIT
This Beehive™ Valve Spring Kit for LS engines is designed for hydraulic roller cams and includes carefully matched Beehive™ Springs, retainers, locks, seals and spring seats. With a .625" maximum lift, these Beehive™ Valve Springs deliver increased valve train stability and a much lighter valve train. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and retainer. The unique Beehive™ shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life.

  • 26918-16 Beehive™ Valve Springs
  • 774-16 Steel Retainers
  • 623-16 7° Steel Valve Locks
  • 511-16 Valve Seals
  • 4705-16 Spring Seats

$335.00
LUNATI VOODOO LS VALVE SPRING KIT
Lunati Voodoo valve spring and retainer kits offer you an easy, cost-saving method of ensuring that your cam is matched with the correct components. The springs will help engines by releasing some of the horsepower that the stock components are holding back. The Lunati Voodoo valve spring and retainer kits feature heat-treated valve springs and can be installed in most cylinder heads with no machining. Fits LS heads with stock-type .500" guide.
$235.00
MOROSO 3-VANE VACUUM PUMP; ORIGINAL DESIGN (22640)
22640Original Design 3-Vane Vacuum Pump

  • Versatile Billet aluminum design
  • Engineered vane material for improved efficiency and wear
  • Completely rebuildable in 15 minutes
  • Mounting bracket not included
  • 4.150" O.D. body, 5.050" from back of pump to pulley mounting flange


Part #AVAILABLE OPTIONS
22645Vacuum Pump Vane Kit, 3 Vane


Part #MOUNTING BRACKETS
63909Mounting Bracket, Big Block Ford, Driver or Passenger cylinder heads
63910Mounting Bracket, All Engines, With a motorplate or Small and Big Block Chevy with Driver/passenger cylinder heads
63911Mounting Bracket, Small Block Ford, Driver or Passenger cylinder heads
63912Mounting Bracket, Big Block Chrysler, Driver side of engine block
63921Mounting Bracket, Ford 4.6/5.4, OEM, Power Steering Pump Location
63922Mounting Bracket, GM LS,Driver side cylinder head
63923Mounting Bracket, GM LS,Passenger side cylinder head


Part #REPLACEMENT PARTS
97641Replacement Fittings, -12AN
97180Rebuild Kit, Original Design Pumps
22626Replacement Fittings, -16AN

GETTING THE MOST PERFORMANCE FROM YOUR VACUUM PUMPS

Moroso Vacuum Pump Nos. 22640 and 22641 can be driven no faster than 6500 RPM. The Moroso Vacuum Pump Nos. 22642 and ­­­22643 can be driven as high as 8000 RPM. Moroso offers many ratio options for two reasons. First, by spinning the pump fast enough to achieve the desired vacuum at staging RPM is critical to getting the most performance from your vacuum system. Typically the amount of vacuum it makes below your staging RPM is not as important as it is when you are under a load and ready to make your run.

Second, with engines that either run on alcohol, are supercharged or turbocharged, having the pump spin to maximum RPM to maintain vacuum is necessary in some cases. This will decrease the life of the pump, but will achieve the desired results.

$461.95
DART BIG M SPORTSMAN CAST IRON ENGINE BLOCK (74144)

What is the foundation for a better big block build? It's Dart's Big M Sportsman Big Block Chevy Cast Iron Bare Blocks of course! Dart engineered the Big M to be the strongest, most reliable, and easiest to build big blocks on the market. Hey, engine building is serious business--thankfully there's Dart! The Dart Big M Sportsman blocks feature: * Standard 9.800 in. and tall 10.200 in. deck heights available for Stroker engines * Standard 4.250 in., 4.500 in. or 4.600 in. bore sizes with Siamesed extra thick cylinder walls to resist cracking and improve ring seal (minimum .300 in. thick with 4.625 in. bore) * Uses +.300 in. tall Gen VI style lifters. Modifications for Gen IV style are also available * Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures * 4-bolt ductile iron main caps have splayed outer bolts for extra strength * True priority main oil system lubricates the main bearings before the lifters * Oil filter pad is drilled and tapped for an external oil pump * Lifter valley head stud bosses prevent blown head gaskets * Rear main cap uses standard oil pump and two-piece seal, no adapter required * Mechanical fuel pump boss, clutch linkage mounts, and side and front motor mounts simplify installation in chassis * Dual oil pan bolt patterns fit standard and notched oil pans * Coated cam bearings, freeze plugs and dowels not included * Small bore 396 version available

$2,325.00
DART SBC SHP ENGINE BLOCK (LSNext)
Dart SHP Special High Performance small block Chevy cast iron bare blocks are designed for high performance and heavy duty applications. These SPH blocks are an ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders and high performance marine enthusiasts. Key features of SHP small block Chevy bare blocks are: * Priority main oiling system * Siamese cylinder bores with extra-thick walls * Extra thick decks to ensure reliable head gasket seal * Blind head bolt holes (don't go through water jacket) * Scalloped water jacket walls for improved flow around cylinders for better cooling * Clearance for 3.75 in. stroke with steel rods * Splayed outer bolts on middle main bearing caps * Provisions for OE stock roller lifters and cams * All OE bolt holes starter, clutch ball, etc. * Uses 1981 to 1985 stock style oil pan and passenger side dipstick * Uses stocked stamped steel or plastic timing cover
$1,665.00
DART LSNEXT ENGINE BLOCK (LSNext)

Designed from a clean slate approach the LS Next Iron block has addressed the shortcomings of the LS platform and is the ideal candidate for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts.

By utilizing conventional style main caps and oil pans with LS rotating assemblies and related components, Dart has addressed the windage and oil control problems which result from the factory LS engine’s separated crankcase bays.

• Priority main oiling system.

• Siamesed cylinder bores with extra thick walls.

• Cylinder barrels extended .375” at the bottom.

• Extra thick decks ensure reliable head gasket seal.

• Blind head bolt holes don’t go through to water jacket.

• Scalloped water jackets increase flow around cylinders for better cooling.

• Clearance for 4.100” stroke w/ steel rods.

• Splayed outer bolts on middle main bearing caps.

• LS or Gen I style motor mounts.

• Provisions for OE stock roller lifters and cam.

• Uses stock timing covers and stock rear cover.

• All OE bolt holes for starter, water pump, etc.

• Driver or passenger side starter mounts.

• Parts kit sold separately (PN: 32000016).

$2,600.00
K1 Technologies H-Beam Connecting Rods for LS (012AE25613)

K1 Technologies H-beam billet connecting rods offer energy transfer technology at its best! Manufactured from billet 4340 steel, these H-beam connecting rods are designed and finish-honed in the USA to some of the tightest tolerances in the industry. They are shot-peened for improved fatigue life and feature bronze wrist pin bushings and ARP 2000 fasteners. Connect with winning technology at an affordable price--K1 Technologies H-beam billet connecting rods offer unbeatable world-class performance.

Connecting Rods, 4340, H-Beam, 12-Point, Cap Screw, 6.125 in. Length, Chevy, Small Block, LS, Set of 8

$665.00
DART PRO1 15° 250cc LS CNC (LS1 compatible) (Pro1)

Recommended for engines with 4.000” bore or larger. Maximum competition, competition modified drag racing, circle track. Over 7,000 RPM. Dart’s PRO1 15° 250cc LS CNC ported Aluminum cathedral port cylinder heads for GM LS series small block V8 engines take performance to the next level. This LS CNC cathedral port head is machined on a dedicated casting with extra thick sections to maintain the proper wall thickness after porting. Due to the large diameter intake valves, the Dart LS CNC head is recommended for use on engines with 4.000 inch and larger cylinder bores. Precise computer controlled CNC machining, multi-angle intake seats, and radiused exhaust seats enhance airflow. Extra material above the ports accommodates valve train upgrades. Heads are sold individually.

Material: RMR Cast Aluminum Alloy Valve Angle: 15° (stock) Intake Port Volume: 250cc CNC Intake Valve: 2.080” Exhaust Valve: 1.600” Chamber Volume: 68cc

$1,075.00
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