Motor question / tranny question

[Mustang Nate]

Hey guys will a 351w and c6 tranny fit in a 1966 mustang coupe without any fab work??

[Harleydave]

351w is a tight fit in a 66. I'll let someone who has one chime in.

[Bucket Lister]

Both will be tight. The 351W is doable, but you will have to do some shock tower modification. You may need a bubble hood too. The C6 will be even tighter. You will have to modify the trans tunnel. MustangSteve has a tutorial about doing this Google MustangSteve.

[Mustang Nate]

Ok thanks guys ill stick to building a 302

[cmefly]

The 351W fits with no problems. You do need the correct headers like Hooker Supercomp 6208. Hood clearence can be an issue with some intakes. I would not use a c-6 as the c-4 fits better and uses less power and can be built to take a lot of abuse. If going the 302 route I would do a Stroker 347.

[bartl]

Just do a 351W and a C4...plenty strong enough.

[22GT]

Originally Posted by Mustang Nate

Hey guys will a 351w and c6 tranny fit in a 1966 mustang coupe without any fab work??

Yes. You will need to be a bit creative with the trans crossmember.

[supershifter2]

use the hooker engine swp headers. trade the c6 for a c4. the c6 eats up 55 hp compared to the 25 a c4 eats up. the c4 will easily handle the 351w. i put a 351w in a 65 with the hooker engine swap headers and didnt modify anything.

[mustang656man]

ran a 351w and c4 in a 66 convrt for 7 years and over 100k using stock 289 exhaust manifolds but the drivers side is tight against the steering box but a couple of washers under l/h mtr mt gives a little clearance. only had to change out l/h ex manifold 1 time. wes