Best Holley Oil Pan Options For Your 1966 Chevelle

The Holley 302-3 oil pan is designed for LS engine retrofit installations in GM muscle/classic car and truck chassis, providing more clearance in the front half of the oil pan. It is a direct replacement for many '64-and-up cars and trucks, including the 1966 Chevelle. The Holley 302-3 oil pan is also compatible with the Ford Fox body OEM K-member and was designed to clear the Fox Body rack and pinion. This oil pan provides maximum clearance for vehicles where the steering linkage is behind the engine cross member.

Holley 302-3 oil pan

The Holley 302-3 LS Swap Oil Pan is designed for LS engine retrofit installations in GM muscle cars, classic cars, and trucks. It is perfect for 1967-69 Camaro/Firebird, 1968-74 Nova/Apollo/Ventura/Omega, 1982-92 F-body, 1978-87 G-body, and 1964-72 A-body applications, as well as 1979-2004 Mustang and 1979-1986 Capri Fox bodies.

The 302-3 design offers increased sump clearance and can accommodate a 4.00-inch stroke crankshaft. It includes two 1/2-inch NPT oil return bosses, providing convenient oil return for turbochargers, with one port on each side. The sump profile has been revised to allow extra chassis and steering rack clearance.

The Holley 302-3 oil pan provides OE-style fitment, including OE oil filter mounting, OE oil cooler port, OE engine NVH suppression, OE flange gasket, and OE bell-housing attachments. It features a traditional high-quality cast aluminum appearance with clean exterior styling.

This oil pan offers maximum clearance for vehicles where the steering linkage is behind the engine cross member. The complete kit includes a sump baffle, OE-style pick-up tube, sump plug, oil filter stud, oil passage cover, and other necessary components.

The Holley 302-3 oil pan has received positive reviews for its quality, fit, and ease of installation. However, some users have noted that additional parts, such as gaskets and windage trays, may be required, and these are not always included with the pan.

Holley 302-2 oil pan

The Holley 302-2 oil pan is an LS Swap Oil Pan designed for GM LS retrofit installations in muscle, classic, and truck chassis. It is made of cast and machined aluminum and provides maximum clearance to the chassis and the ground. It is a great fit for 1967-1969 Camaro/Firebird, 1968-1974 Nova/Apollo/Ventura/Omega, 1982-1992 F-body, 1978-1987 G-body, and 1964-1972 A-body applications.

The Holley 302-2 oil pan provides an OE (Original Equipment) style fitment, including OE oil filter mounting, OE oil cooler port provision, OE engine NVH suppression, OE flange gasket and sealing, proper structural rigidity, and OE bell-housing attachments. It also provides maximum clearance for vehicles where the steering linkage is behind the engine crossmember.

The complete kit includes a sump baffle, OE-style pick-up tube, sump plug, oil filter stud, oil passage cover, and other accessories. The distance between the oil pickup and the bottom of the pan is 0.378 inches, while the distance between the pickup tube and the side of the oil pan is 0.136 inches. The maximum crankshaft stroke is 3.62 inches, and the sump oil capacity is 5.7 quarts.

It is important to note that the Holley 302-2 oil pan may not be compatible with LS7 engines or "stroker" engines greater than 3.62 inches. It is designed to use a GM "F-body" windage tray, and modifications to the windage tray may be required for clearance.

The Holley 302-2 oil pan has received generally positive reviews, with many customers highlighting its high quality, good fitment, and the additional clearance it provides. However, some reviews mention issues with the included parts, such as the wrong oil sump tray or a drain plug that does not fit properly.

Holley 302-1 oil pan

The Holley 302-1 GM LS Swap Oil Pan is designed for LS engine retrofit installations in a variety of GM muscle car, classic car and truck chassis. It is manufactured from traditional high-quality cast aluminium and provides maximum clearance to the chassis and ground. The oil pan is also designed to provide an OE (Original Equipment) Style fitment for durability and proper sealing.

The Holley 302-1 oil pan includes a sump baffle, pick-up tube, sump plug, oil filter stud and oil passage cover. It fits GM rear-wheel-drive applications originally equipped with a Small Block or Big Block Chevy engine and a traditional rear sump oil pan. The maximum crankshaft stroke is 4.25 inches, with a sump oil capacity of 5.5 quarts and a total oil capacity with a stock oil filter of 6 quarts.

The Holley 302-1 oil pan has received positive reviews from customers, with an average rating of 4.4 out of 5 stars on Amazon.com. One customer praised the oil pan for its high-quality construction, while another appreciated the additional clearance it provided for their LS swap project.

The Holley 302-1 oil pan is available for purchase on Amazon.com, SummitRacing.com, and eBay, with prices ranging from $465.95 to $500.

1966-67 Chevelle LS Swap Radiator Kit

The 1966-67 Chevelle LS Swap Radiator Kit with Holley 302-3 Oil Pan is a direct replacement for many '64-and-up cars and trucks. The all-aluminum radiator features two rows of 1" tubes, all-welded construction, and a built-in transmission cooler. The LS hose adapter has a 1.25" end to match the water pump outlet and a 1.5" end to match the upper radiator inlet.

The oil pan is designed for LS engine retrofit installations in GM muscle/classic car and truck chassis, requiring more oil pan-to-chassis clearance around the front half of the oil pan. It provides maximum clearance for vehicles where the steering linkage is behind the engine cross member.

The kit includes:

• Speedway 1966-70 Chevelle/Impala Aluminum Radiator
• LS Swap Radiator Hose Adapter w/ Steam Port, 1.5 Inch - 1.25 Inch
• Holley 302-3 LS Swap Retro-Fit Oil Pan w/302-15 Dipstick/Gasket Kit

The Speedway 1966-70 Chevelle/Impala Aluminum Radiator is a crossflow radiator with all-welded construction and a built-in transmission cooler. It measures 29" wide and 18-1/2" tall. Shroud and fan assemblies are sold separately.

The LS Swap Radiator Hose Adapter features a 1.25" end to match the water pump outlet, a 1.5" end to match the upper radiator inlet, and an integrated 1/4" 90° hose barb fitting for the steam line. It has a black finish to blend in with radiator hoses.

The Holley 302-3 LS Swap Retro-Fit Oil Pan provides more sump clearance and includes two 1/2" NPT oil return bosses, clearing a 4.00” stroke crankshaft. It fits 1955-87 GM Muscle Cars and Trucks that need more clearance in the front of the oil pan. The profile of the sump has been revised to provide extra chassis and steering rack clearance. It includes two 1/2-14” NPT oil return ports and provides OEM fitment and sealing.

The 1966-67 Chevelle LS Swap Radiator Kit is also available from other retailers, including AFCO and Be Cool Radiators, offering similar features and benefits for the LS swap into classic muscle cars.

1966-1970 Chevelle oil pans

There are three distinct oil pans for the 1966-67 Chevelle:

Version 1 is specific to the 1966 model and was used on Chevelle 396 engines assembled up to December 30, 1965. It may have been used for longer. This oil pan has a front center hole for a bolt that attaches to the bottom of the timing cover, so the timing cover must be the correct version too. It has a simpler oil baffle design than the later versions, with a completely flat baffle and fewer indentations on the sides of the pan. Version 1 takes a curved dipstick tube.

Version 2 is likely a late 1966 or early 1967 oil pan. It has the same front center bolt hole as Version 1 but features a more complicated "X"-shaped baffle design and more indentations on the sides.

Version 3 is a 1967-only oil pan and does not have the front center bolt hole. It has an "X"-shaped baffle design, which changed to a "V" or "Y"-shaped pattern in later Chevelle oil pans.

All three versions of the 1966-67 Chevelle oil pans have two large indentations on the sides of the oil pan for inner tie rod end clearance. These indentations are necessary for the tie rods located at the front of the engine cross member. Impala and Camaro 396 oil pans do not have these indentations, as the tie rods for these vehicles are located at the rear of the engine cross member.

The 1965-66 Chevelle oil pans have a flat inner oil pan baffle with no stamped baffle grooves, while the 1967 pans have a stamped "X" groove. The 1968-70 pans have a "Y" groove. The 1965-66 pans also have a quarter-inch stamped indentation in the center of the oil pan, while the 1967-70 pans have a three-quarter-inch slot indentation.

Frequently asked questions