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  Group 10D         Modified Engine / Trans Mounting

TECHNICAL NOTES; V8 Engine Mounting Suggestions for Modified Cars

Small Block: If engine is in car now with stock front motor mounts and you do not wish to remove it, the easiest is

to leave stock front mounts & use #’s 10-110, 10-111A with 10-156 or 10-111B, & 10-216, regardless of which late

model auto trans you are using. If you have an original 283 or 265 block you will need to use #21-START (see

Generator Starter Section, Group 21D) to mount starter. For stick cars the easiest is to use an original bell housing (or a

Scatter Shield made for a 55-7) with stock rear mounts (10-116, 10-117) plus10-216, 10-111A with 10-156 or 10- 111B,

if you are using a cast iron 4 speed or any 5, 6 speed trans.  Using the stock bell housing will allow you to use original

clutch linkage. If you are starting from scratch (& are Not using an original 55-7 block that do NOT have side

mount bosses) the best way is #10-185 side mounts with #’s  10-186A, 10-186C, 10-111A with 10-156 or 10-111B,

10-216, 10-216A. You do not need to use 1” forward mounts to use an HEI distributor. If crossmember 10-111A or

10-111B is mounted as high as possible (trans rear mainshaft center should be 1 ¼ above top of frame rails) you

should have plenty of clearance for distributor unless Body is mounted all the way forward on frame (Yes, that is

adjustable. Loosen body bolts & slide body back.) If you plan to have an updated power steering pump it is

suggested that you mount your radiator in the 6-cyl position. If you use the V8 position you will have very little

choice for engine fans.

Big Block: #10-185A is a front mount setup that puts engine in ‘stock’ location and requires modifying firewall to

get valve cover clearance. Use this setup with #’s 10-110, 10-111A with 10-156 or 10-111B, & 10-216, 10-216A for auto

trans applications, for stick cars use an original bell housing (or a Scatter Shield made for a 55-7) with stock rear

mounts (10-116, 10-117) plus 10-111A with 10-156 or 10-111B, & 10-216, 10-216A. Using the stock bell housing will

allow you to use original clutch linkage.  If you wish to use side mounts you can use 10-185 mounts with #’s 10-186A,

10-186C, 10-111A with 10-156 or 10-111B, & 10-216, 10-216A. This also requires modifying firewall to get valve cover

clearance, which is the best way to do it.  Using 1” forward mounts creates many problems in solving the firewall

problem such as drive shaft, headers, clutch linkage, oil pan, handling, etc. We do not sell these as we feel they create

many more problems than they solve. See our web site for basics on the firewall mods required


 

                                              

10-185       SIDE MOTOR MOUNT BRACKETS, bolt on brackets to change from stock mounting to later

model side mounting of V8 engines, comes with all necessary hardware & instructions, (we suggest you use

10-111A with 10-156 Crossmember Mounting Kit or 10-111B Crossmember kit, &10-216 Rear Mount Cushion,

& 2 10-186A Side Mount Cushion, to complete your engine & transmission mounting) USA made, will not

interfere with fuel line.

10-185

SIDE MOTOR MOUNT BRACKETS

 

 

Note:  We Do Not Sell 1" forward side motor mounts.  We recommend that you use 10-185.  We have found

that using these 1" forward mounts create more problems than they solve. These are too numerous to list here.

Bigblocks; just modify your firewall as necessary and you will save yourself a lot of work and aggravation. In the

case of a smallblock there is no good reason to move it forward. If rear engine height and body location on the frame

is correct GM HEI distributor will fit most without modifying anything. You need 3 1/4" from rotor center to firewall to fit.

                                                  

10-186A

Side Motor Mount Cushion, heavy duty (has slotted mount holes to frame bracket) (w/safety lock), ea. (for 10-185 brackets)

 

10-186C

Bolt Set, for side motor mount cushions, grade 8 long bolts, & washer head bolts as required to do 1 pr of side motor mounts

 

10-216

Cushion, Crossmember to Transmission, rubber/metal mount for our custom crossmember, use with any transmission

 

10-216A

Crossmember Cushion Bolt Set