Summit Racing Engine Swap Specs

blown small blockSummit Racing has published a handy list of common dimensions for the most popular engines selected for engine swapping. Engine swaps always go better when you measure everything in advance and plan accordingly. If you already have an open engine bay, you can compare its dimensions to the accompanying chart to get an initial feel for how well your choice of engine will fit.

Summit techs caution that these specs will give you the overall height, length and width of a fully dressed engine (oil pan, intake and carburetor, front accessory drives, exhaust), but they are general dimensions that can vary
depending on what equipment you or
the factory have installed.

They stress the following caveats:

  • Check measurements with all engine accessories installed to prevent surprises like bolting in an engine and finding you have a half-inch of radiator clearance.
  • Choose the engine mounting method (rubber mounts, solid mounts, motor plate, etc.) before installation. The mounts you use can affect clearances, especially height.
  • Double-check—make that triple-check—hood clearance, firewall clearance, and fan-to-radiator clearance.
  • Ensure that the driveline angle is correct. You may have to adjust engine location in the car to get the proper angle.

Consult the following chart to get you project underway and then shop Summit Racing to find the best deals on parts.

 

Chevrolet 262-400
Chevrolet 396-454
GM LS1/LS6
Length: 28 inches
Width: 26 inches
Height: 27 inches
Weight: 575 pounds
Sump Location: Rear
Starter Location: Right
Length: 30.5 inches
Width: 28 inches
Height: 29 inches
Weight: 685 pounds
Sump Location: Rear
Starter Location: Right
Length: 28 inches
Width: 26 inches
Height: 25 inches
Weight: 425 pounds
Sump Location: Rear
Starter Location: Right
Ford 221-351W
Ford 351C*
Ford 429-460**
Length: 29 inches
Width: 24 inches
Height: 27.5 inches
Weight: 460 pounds
Sump Location: Front
Starter Location: Left
Length: 29 inches
Width: 24.5 inches
Height: 28.5 inches
Weight: 550 pounds
Sump Location: Front
Starter Location: Right
Length: 30 inches
Width: 27 inches
Height: 29 inches
Weight: 720 pounds
Sump Location: Front
Starter Location: Right
Ford 352-427FE***
Ford 4.6L SOHC****
Ford 4.6L DOHC****
Length: 32 inches
Width: 27 inches
Height: 29 inches
Weight: 625 pounds
Sump Location: Front
Starter Location: Right
Length: 28 inches
Width: 28-5/8 inches
Height: 26 inches
Weight: 600 pounds
Sump Location: Front
Starter Location: Right
Length: 28 inches
Width: 30 inches
Height: 29-7/8 inches
Weight: 576 pounds
Sump Location: Front
Starter Location: Right
Chrysler 273-360
Chrysler 361-440
Chrysler 426 HEMI
Length: 29 inches
Width: 24 inches
Height: 27 inches
Weight: 550 pounds
Sump Location: Front
Starter Location: Left
Length: 30 inches
Width: 29-1/2 inches
Height: 29 inches
Weight: 670 pounds
Sump Location: Front
Starter Location: Left
Length: 32 inches
Width: 29 inches
Height: 32 inches
Weight: 690 pounds
Sump Location: Middle
Starter Location: Left

Footnotes:
*       351W height to carburetor pad 23-3/4 inches, 289-302 height to top of pad is 20-3/4 inches.
**     Does not cover Boss 429.
***   Does not cover 427 SOHC.
**** Width is valve cover to valve cover. Height is to top of valve covers.

 Thanks to Summit Racing for this informative chart.

 

SOURCE:

Summit Racing

Garrett SFI Spec Drag Racing Turbos

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