67 Bonne 400ci

[ejw71]

Will 73 455 heads bolt up to a 67 400? If so, can the 67 intake be used or must I use the 73 intake? Thanks, Ed

[ejw71]

Will 73 455 heads bolt up to a 67 400? If so, can the 67 intake be used or must I use the 73 intake? Thanks, Ed

[Txbobcat]

I believe everything from 65 and up will interchange.
I used to have a 67 Cat convert many years ago loved that car.

[mike nixon]

you'll need to check the valve sizes on the 455 heads. the block may have to be relieved so they'll clear the cyl wall.

they will bolt up tho, just may not work right.

mike

[bonneville Joe]

Also, watch the valve clearance on the pistons themselves. Might need a dished or relieved piston.