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There are several engine swap kits forputting non-stock engines into popular body styles, such as big blocks, into 1955-’57 Chevys or small blocks into Jeep CJs, for example. The kits usually include things like motor mounts and headers designed to provide clearance of the vehicle frame, steering shafts, and the like.

Since there’s more to engine swaps than just squeezing the engine under the hood, Summit Racing has come up with a list of things to measure and check for to help you perform a successful horsepower transplant. Remember, measure twice, cut once, and start swappin’!

 

Engine Measurements






          Sump Starter
Engine Width Length Height Weight Location Location
Chevrolet
262-400
396-454
Ford
221-351W*
351C
429-460**
352-427 FE#
4.6L SOHC***
4.6L DOHC***
26"
28"

24"
24 1/2"
27"
27"
28 5/8"
30"

28"
30 1/2"

29"
29"
30"
32"
28"
28"

27"
29"

27 192"
28 1/2"
29"
29"
26"
29 7/8"

575 lbs.
685 lbs.

460 lbs.
550 lbs.
720 lbs.
625 lbs.
600 lbs.
576 lbs.

Rear
Rear

Front
Front
Front
Front
Front
Front

Right
Right

Right
Right
Right
Right
Right
Right

* 351W height to carburetor pad is 23 3/4". 289-302 height ot top of pad is 20 3/4".
Length for all 221-315W Ford is with short serpentine water pump
** Except Boss 429
# Except 427 SOHC
*** Width is valve cover to valve cover. Height is to top of valve covers.

 

Engine Measurements






          Sump Starter
Engine Width Length Height Weight Location Location
Chrysler
273-360
361-440
426 Hemi
24"
29 1/2"
29"
29"
30"
32"
27"
29"
32"
550 lbs.
670 lbs.
690 lbs.
Front
Front
Middle
Left
Left
Left

Engine Swap Check List
1. Always check measurements with all engine accessories installed. That will help prevent catastrophes like bolting in an engine and finding you have a half-inch of radiator clearance.
2. Select the engine mounting method(rubber mounts, solid mounts, motor plate, etc.) before installation. The mounts used can affect clearances, especially height.
3. Double-check – make that triple-check – hood clearance, firewall clearance, and fan-to-radiator clearance.
4. Make sure driveline angle is correct. You (or the installer) may have to adjust engine location in the car to get the proper angle.

– Courtesy of Summit Racing Equipment

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