Product Summary
Chevy LS V8
- Complete your next LS Swap into that GM A-Body, B-Body or Truck with these installation conversion kits featuring oil pan and radiator with hose adapter
- All aluminum radiator features two rows of 1″ tubes, all welded construction, and includes a built-in transmission cooler
- LS hose adapter features one 1.25″ end to match the water pump outlet, one 1.5″ end to match the upper radiator inlet
- 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
- Oil pan provides maximum clearance for vehicles where the steering linkage is behind the engine cross member.
Details
Complete your next LS Swap into that GM A-Body with these installation conversion kits featuring oil pan and radiator with hose adapter.
Kit Includes:
- (1) Speedway 1966-90 GM A-Body/B-Body/Truck Aluminum Radiator
- (1) LS Swap Radiator Hose Adapter w/ Steam Port, 1.5 Inch – 1.25 Inch
- (1) Holley 302-3 LS Swap Retro-Fit Oil Pan w/302-15 Dipstick/Gasket Kit
Speedway 1966-90 GM A-Body/B-Body/Truck Aluminum Radiator
- All aluminum radiators features two rows of 1″ tubes
- All welded construction
- Includes a built-in transmission cooler
- Fan and shroud assemblies available separately
Learn more about how radiators work and selecting the proper radiator for your vehicle by reading our tech article. Radiator Cooling Performance.
LS Swap Radiator Hose Adapter w/ Steam Port, 1.5 Inch – 1.25 Inch
Runner-Up for the 2020 SEMA Best New Street Rod/Custom Car Product Award!
If you’ve decided to add modern power to your ride using an LS series engine, this LS Steam Port Radiator Hose Adapter is the perfect way to protect your investment and ensure proper cooling system function.
We wanted to offer a solution for the budget-minded builder that also kept aesthetics in mind. Instead of an inline hose adapter with an NPT bung for you to plumb in your own fittings, which can look like junkyard parts hacked together and is susceptible to leaks, we created a unique LS Steam Vent Radiator Hose Adapter. This adapter makes quick work of several LS swap radiator hose issues with one simple piece. It features one 1.25″ end to match the water pump outlet, one 1.5″ end to match the upper radiator inlet, an integrated streamlined 1/4″ 90° hose barb fitting for the steam line, and a black finish to blend in with radiator hoses.
- 1.25″ end – matches water pump outlet size
- 1.50″ end – matches upper radiator inlet size
- Black finish blends in with radiator hoses
Unlike the older SBC or BBC, the LS engine family features a thermostat that is located in the water pump housing. While this design allows for temperature and flow to be regulated before the coolant enters your engine, having the thermostat at a low point means that any air in the cooling system can easily get trapped in your engine. Air bubbles in cooling passages disrupt coolant flow, create hot-spots, and can cause overheating issues, pre-ignition, and detonation. None of these are things that your new (or used) LS will stand up to for very long without damage. Fortunately, there are steam ports in the heads that allow this trapped air to flow away from critical cooling locations to a high point outside of the cylinder heads. Since these engines utilize a closed pressurized cooling system, the steam tubes must be connected back into it at some point. Stock radiators in vehicles produced with LS engines feature a port to connect the steam lines to, and a direct-fit LS swap radiator with steam port provision is likely available for your ride – at a high price tag. This piece allows you to spend less of your hard-earned cash on a cooling solution without sacrificing appearance under the hood.
Holley 302-3 LS Swap Retro-Fit Oil Pan w/302-15 Dipstick/Gasket Kit
Holley is proud to announce that they have taken their LS Retro-fit oil pans to the next level! The Holley 302-3 Oil Pan has more sump clearance, includes two 1/2″ NPT oil return bosses, and can clear a 4.00” stroke crankshaft. Just like the 302-2, the new designed 302-3 will fit the 1955-87 GM Muscle Cars and Trucks that need a little more clearance in the front of the oil pan. However, the new design will also fit the Ford Fox body OEM K-member and was designed to clear the Fox Body rack and pinion too. It’s a win-win for more LS conversions.
Features:
- 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
- Profile of the sump has been revised to provide extra chassis and steering rack clearance
- Perfect for: 1968-74 Nova/Apollo/Ventura/Omega and 1964-72 A-body applications
- NOTE – Oil pan #302-3 will clear a 4.00” stroke crankshaft.
- Includes two ½-14” NPT oil return ports to provide a convenient oil return for turbochargers. (one port on each side)
- Provides OEM fitment – OEM oil filter mounting, OEM oil cooler port provision, OEM engine NVH suppression, OEM flange gasket and sealing, proper structural rigidity and OEM bell-housing attachments
- Traditional high-quality cast aluminum appearance with clean exterior styling
- Provides maximum clearance for vehicles where the steering linkage is behind the engine cross member
- Complete kit includes sump baffle, OE style pick-up tube, sump plug, oil filter stud, oil passage cover, drain plug, dipstick, gasket, etc.
Application
Radiator Applications:
- 1968-72 Chevelle/Malibu
- 1970-77 Monte Carlo
- 1974-77 Buick Regal
- 1966-77 Olds Cutlass
- 1966-77 Pontiac Grand Prix
- 1968-77 Pontiac LeMans/GTO
- 1972-79 Chevy Impala, Caprice, Bel Air, and Biscayne
- 1973-90 Chevy/GMC Truck
Charts
KEY SPECS |
|
---|---|
MFG. Part # | 9100275 |
Brand | Speedway Motors |
GENERAL |
|
Sold in Quantity | Kit |
Application Compatibility | Engine Swap |
Attachment Style | Bolt-on |
Bushing Included | No |
Capacity | 5.9 quarts |
Drain Plug Included | Yes |
Gasket Or Seal Included | Yes |
Pickup Included | Yes |
Sump Style | Wet Sump |
Windage Tray Included | No |
Radiator Included | Yes |
Radiator Style | Single Pass |
Radiator Flow Direction | Crossflow |
Radiator Material Type | Aluminum |
Inlet Location | Upper driver side |
Outlet Location | Lower passenger side |
Row Quantity | 2 |
Tube Size | 1.00″ |
Overall Width | 33.00″ |
Overall Height | 18.50″ |
Overall Thickness | 3.125″ |
Core Width | 28.375″ |
Core Height | 17.375″ |
Core Thickness | 2.25″ |
Radiator Finish | Natural |
Cooling Fan | Not Included |
Transmission Cooler | Yes |
Shroud Included | No |
Filler Neck Height | 1.00″ |
Inlet Size | 1.25 |
Outlet Size | 1.50 |
Radiator Cap Included | No |
Single Pass, Double Pass, Triple Pass Radiators; What’s The Difference?
What Does Your Radiator Do?
The job of a radiator is to remove as much heat from the hot engine coolant as possible. To accomplish this, the coolant is pumped from the engine to the radiator via your engine’s water pump and radiator hoses. On a crossflow radiator the coolant cycles from the inlet side of the radiator to the outlet side of the radiator and back to the engine, where it must pass through the central radiator core. A downflow radiator has the inlet at the top and outlet back to the engine on the bottom. This core is made up of one or more rows of tubes that utilize cooling fins attached to them. These fins are used by the radiator’s belt driven or electric cooling fan to direct air across these tubes, transferring the thermal energy from the coolant and the radiator tubes/cooling fins to the air around it.
![tubes](https://i0.wp.com/content.speedwaymotors.com/ArticleSectionImages/230134_ArticleSection_M_2f348c26-5b3e-4ba7-8655-cf4ebef5fd88.jpg?ssl=1)
Single pass radiators provide a flow of coolant through the radiator one time. Double pass radiators do it twice by looping the coolant path back to the inlet side of the tank. Triple pass radiators, you guessed it, they flow through the radiator three times. These radiators all utilize a crossflow style radiator design. To learn more about crossflow vs downflow radiator designs visit our Toolbox article explaining their differences. Since that is covered, we can move on to the cool stuff (pun intended).
What Do Single Pass Radiators Work Best For?
![single pass rad](https://i0.wp.com/content.speedwaymotors.com/ArticleSectionImages/227498_ArticleSection_M_bc5bb9e0-5fa4-4980-b699-020d6434f7e1.jpg?ssl=1)
Single pass radiators have one channel that goes from inlet to outlet, hence “single pass.” These work well in street applications, as well as some race applications. On these radiators, the inlet and outlet are usually located opposite of each other. The factory water pump on your vehicle should be adequate to move the coolant through a standard single pass radiator without issues.
How Does a Double Pass Radiator Work?
![double pass radiator diagram](https://i0.wp.com/content.speedwaymotors.com/ArticleSectionImages/227499_ArticleSection_M_f90e720e-85e0-405f-81d2-ce731f65772a.jpg?ssl=1)
A double pass radiator will have the inlet and outlet on the same side. This is due to the fact that there are two channels coolant will flow through on its path back into the engine. These radiators will work well in both street and race applications; however, a high-volume water pump is a recommended upgrade. Since the inlet will be on the same side as the outlet, you may have to divert your upper or lower radiator hose depending upon application. You can accomplish this either with a pivoting water neck on Chevy engines, or by changing the hose entirely.
Where Would You Use a Triple Pass Radiator?
![three pass rad](https://i0.wp.com/content.speedwaymotors.com/ArticleSectionImages/227506_ArticleSection_M_fb62dadd-3c6f-4829-bd57-6d77cbe5ee0b.jpg?ssl=1)
Triple pass radiators are more suited for race applications. Inlets and outlets will usually be on opposite sides and the flow will pass through three times. High volume water pumps, little to no restriction, and 1-to-1 pulleys are basically a requirement in order to ensure the optimal circulation and cooling effects of these high demand radiators.
Top any of these choices off with a solid fan shroud kit and a good puller type electric fan, and your engine will be running cool for years to come!
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