351 ???
Freshman User
Joined: Mar 2007
Posts: 34
Likes: 0
Are you trying to id the intake or the engine? Dont know your model. 351M 400 have factory two barrel only and the front of the intake valley boss hass an aprox 1 inch tall rib forward past the dist. They share a 460 bellhousing bolt pattern too and the clever has the standerd smallblock pattern.
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Sounds like a 351M or W at least, not a 351C. Check out the following:
Engine Identification (rev):
======================
351C/M/400 335 series: 8 bolts in rectangular valve covers. Timing chain housing is part of block. Thermostat housing on block. Exhaust bolt holes diagonal.
351M/400 335 series: intake is 12.7" wide the 351C is narrow.
351W/302/5.0L 6 bolts on trapezoidal valve covers. Thermostat housing on intake. Exhaust bolt holes horizontal.
429/460 385 series: 7 bolts in rectangular valve cover
352/360/390/427/428 FE series: Intake goes under valve covers.
-There are other indicators but these are enough to distinguish engine families.
Engine Identification (rev):
======================
351C/M/400 335 series: 8 bolts in rectangular valve covers. Timing chain housing is part of block. Thermostat housing on block. Exhaust bolt holes diagonal.
351M/400 335 series: intake is 12.7" wide the 351C is narrow.
351W/302/5.0L 6 bolts on trapezoidal valve covers. Thermostat housing on intake. Exhaust bolt holes horizontal.
429/460 385 series: 7 bolts in rectangular valve cover
352/360/390/427/428 FE series: Intake goes under valve covers.
-There are other indicators but these are enough to distinguish engine families.
