All 289s after mid 1964, all 302s including boss 302s, all 351w, all 351c, all 250 6 cylinder. all 240 and 300 6 cylinder, all SVO nascar V-6 and all 351 SVO engines use the same 6 bolt bellhousings.
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- Thread starter jagxjr5012
- Start date
'''''Not quite correct--should read----" USA built 250 6 cylinder ''--- Aust prod 250 still use earlier 6 cyl bolt pattern.
351w 351 SVO and 351c are all exactly the same as far as motor mounts and bellhousing are concerned. 351m is another story. I am not sure what a 429 cammer is and I have several 427 sohc and many Boss 429s.
1 more note a 351w block is actualy bigger than a 351c.
On another note I have 2 of those Australian crossflow 250 6 bangers, 1 aluminum head and 1 cast iron head but I thought they were slightly smaller than 250 cubic inches each. Somewhere around 235-240 maybe?
1 more note a 351w block is actualy bigger than a 351c.
On another note I have 2 of those Australian crossflow 250 6 bangers, 1 aluminum head and 1 cast iron head but I thought they were slightly smaller than 250 cubic inches each. Somewhere around 235-240 maybe?
There is no 429 cammer- only the conventional polyangle wedge production type pushrod & the Boss 429 pushrod with 'crescent/hemi' type heads that could be mistaken for an OHC motor at first glance.
Aussie Ford 250ci six's require more explanation-- they started off around 1971 with the non crossflow intake cast in head type,this evolved into a twelve port with seperate intake manifold ( actually 11 port as center exh siamesed ).
Then in 1975/6 the cast iron crossflow was introduced ( changed block deck surface & revised cooling passages & revised valve placement just to keep the parts swappers confused-- they dont go very good with a non X-flow cam fitted, took the local Ford dealership two days of frustration before I suggested that the cheap old stock cam they had fitted could be the problem
1979/80 the alloy head version introduced ( with different porting arrangement again!!)
Several different combustion shapes on later versions of these thru until 1988/89.
SOHC Alloy head- 3.9 liter-2 valves per cyl- new block-smaller bore- same 250 crank, later bored out to 4.0 liter, then many variations of ports/chambers- 4 valves per cyl-changes in block to reduce NVH etc until present day.
