Small Block Chevy Headers Tight

Small block Chevy header gaskets forGM 604crate motors with aluminum cylinder heads.

There are many things that effect vacuum. Camshaft lobe separation, lifter style, intake manifold, piston rings, compression ratio and overall valve and engine condition. Due to many and varied engine combinations, Speedway Motors offers no warranty on camshaft and or lifters for either performance, vacuum or longevity.

These late model crate motor headers are for the Vortec/Fastburn S/B Chevy crate motors that are popular in most areas. Feature 1-5/8" - 1-3/4" tube diameter and 3" x 8" collectors. We list the Schoenfeld part number for easy reference.

The industry's most popular true high performance cast iron cylinder head has been continuously improved since its introduction over 20 years ago. With 200cc intake and 69cc exhaust ports, World's SPORTSMAN II heads offer 30-70 horsepower gains over OEM heads, yet are 50-state emissions legal.

The industry's most popular true high performance cast iron cylinder head has been continuously improved since its introduction over 20 years ago. With 200cc intake and 69cc exhaust ports, World's SPORTSMAN II heads offer 30-70 horsepower gains over OEM heads, yet are 50-state emissions legal.

More performance and less expensive than rebuilding used heads. No more searching junkyards looking for cylinder heads for your motor.Looks like the smog head on the outside, but has racing head features like an extra-thick deck, screw-in rocker arm studs, and raised valve cover rails.

This cooling unit improves coolant flow and reduces hot spots in your small block Chevy.Fittings install in each head adjacent to the crossover and connect to thermostat housing. Suitable for use with all aluminum and cast iron heads. Contains spacer/adapter, two 18" high-pressure hoses, (4) 1/8" NPT x AN 4 fittings, gaskets and hardware.

9158002Material TypeSteelFinishNaturalSold in QuantitySetNotesSet contains 34 total bolts (2 heads). 5/8 hex head, not undersizes like Manley head bolts.

Kit includes a cast aluminum double groove water pump pulley anddouble groove crank pulley, and a matched pair of heavy duty belts. Has a 1:1 water pump/crankshaft speed ratio.

KRC Modular Serpentine Pulley kits feature their new dual keyed drive sytem with hardcoated billet aluminum pulleys.The water pump drive is available in 30%, 15%, or one to one pulley combinations.Under race conditions water pump speed must be kept between 5,000 and 6,500 RPM for proper engine cooling.Be sure to check with your engine builder for their recommendations.

This steel bellhousing from Quick Time mates a Small Block Chevy, Big Block Chevy, or LT1 to your LS-1 1998-2005 T-56 6-speed transmission. You must use a hydraulic throwout clutch release bearing as there is no provision for mechanical linkage. Includes an engine plate, accepts up to an 11" clutch, and works with 153 or 168 tooth flywheels.

Speedway Billet Aluminum double groove pulleys for Small Block Chevy feature a 30% reduction. Reduction pulleys have a smallerdiameter which slows the speed of your fan, water pump, and alternator to reduce drag for more top-end horsepower. Plus, high RPM water pump operation is improved due to reduced fluid cavitation.

Speedway Motors saves you money with our Speedflow headers! Available for Small Block Ford (SBF). These headers have 1-5/8" primaries and 3" collectors. Includes gaskets and header bolts.

These Speedway headers allow you to keep the exhaust system under your '55-'57 Chevy car. The "3/4-length" design provides more ground clearance than full-length headers, yet makes more power than "shorty" style headers. These chassis headers fit 283-400 S/B Chevy V8s and has 1-5/8" primary tubes with 2-1/2" collectors.

These Speedway headers allow you to keep the exhaust system under your '55-'57 Chevy car. The "3/4-length" design provides more ground clearance than full-length headers, yet makes more power than "shorty" style headers. These chassis headers fit 283-400 S/B Chevy V8s and has 1-5/8" primary tubes with 2-1/2" collectors.

Many rodders are looking to install Chevy's powerful and efficient LS1 / LS6 Small Block V8 in their street rods, customs and classic trucks. These tight-fit headers can make those installations easier in a variety of applications, and help produce more power as well.

Many rodders are looking to install Chevy's powerful and efficient LS1 / LS6 Small Block V8 in their street rods, customs and classic trucks. These tight-fit headers can make those installations easier in a variety of applications, and help produce more power as well.

Many rodders are looking to install Chevy's powerful and efficient LS1 / LS6 Small Block V8 in their street rods, customs and classic trucks. These tight-fit headers can make those installations easier in a variety of applications, and help produce more power as well. This is Garage Sale priced because it is sold as headers only. The reducers, oxygen sensor bung, and hardware are not included.NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS