Item # 63420• Chevy V8 & 90° V6 Filler Neck Manifold Housing
• Locates filler neck at highest point on cars with low-mount radiators to bleed off air
• Unit can be flipped 180° for either right or left outlet location
• Includes 1/2" NPT fitting for installing water temp sending unit & two 1/4" NPT fittings for return lines on popular aftermarket cylinder heads
• Made of 356-T6 cast aluminum - 3-1/4"
• Includes gaskets, bolts, and washers, and standards size radiator cap filler neck
Item # 30372• Fits most Chevy V8
• Accepts most standard thermostats and swivel a full 360 degree to simplify connection of LH or RH radiator hoses to engine
• Black anodized finish helps protect against corrosion
• Stainless steel hardware and an o-ring for sealing the base of the water neck to engine included
Item # 38400• SBC and 90 Chevy V6, and Small Block Chrysler with single plane manifold, set of 12 3/8" -16 x 1-1/8"
• 3/8" diameter, 12-point head intake manifold bolts for use with aftermarket intake manifolds designed with extremely tight fastener clearances
• Kits are manufactured of Grade 8 steel with gold iridite finish and come complete with close-tolerance washers
Item # 38410• Big Block Chevy Intake Manifold Bolts - Set of 16
• 3/8" -16 x 1-1/4" 12-point head intake manifold bolts for use with aftermarket intake manifolds
• Designed with extremely tight fastener clearances
• Manufactured of Grade 8 steel with gold iridite finish
• Come complete with close-tolerance washers
Item # 64922• Throttle Return Spring Kit
• 18° Small Block Chevy Cylinder Heads
• Manifold Mount
• 5-7/16" Tall
• Provides positive throttle return required by several sanctioning bodies
• Each kit fits Holley® 2 or 4 bbl. single carb applications
• Includes one set of return springs
Item # 64923• Throttle Return Spring Kit
• Holley® 4500 and King Demon
• Carb Mount
• Clears most air cleaner combinations and can be used with dual carbs
• Chrome plated Steel
• Kit includes heavy and light sets of stainless steel return springs, all mounting hardware, and complete installation instructions
Item # 64925• Throttle Return Spring Kit
• Small Block Chevy and 90° V6 Chevy
• Manifold Mount
• 1-13/16" Tall
• Clears most air cleaner combinations and can be used with dual carbs
• Chrome plated Steel
• Kit includes heavy and light sets of stainless steel return springs, all mounting hardware, and complete installation instructions
Item # 64927• Throttle Return Spring Kit
• 2300/4100 Holley® Series, Road, Speed, Race Demon Series Carb Mounts
• The answer to your throttle return spring linkage problems if you're running a 2300/2305 series two-barrel or 4150/4160 series 4-barrel Holley® or Road, Speed, Race Demon™ carburetor
• Designed and built rugged enough for competition, yet its polished chrome finish is suitable for the finest show car
• Includes one set of heavy and one set of light springs
Item # 64929• Throttle Return Springs
• Pack of two
• Stainless steel springs can be used as spares or replacements for Moroso Throttle Return Spring Kit Nos. 64925, 64926 and 64928