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Old 02-06-2004, 08:06   #1 (permalink)
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4 bolt 351

k, quick question, what years, if any, did a 351w come with fule injection and 4bolt mains, i knew a few had extra meet on em if u wanted to add the extra bolts, and some had partial 4bolt mains but i wanted to know for a future upgrade.
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Old 02-06-2004, 12:03   #2 (permalink)
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Re: 4 bolt 351

All 302w and 351w have 2 bolt mains except 302 BOSS and the SVO blocks. Fuel injected blocks never had 4 bolt mains as they were mostly used as truck motors in the US and were not really considered by Ford as a performance motor especialy since the release of 4.6 and 5.4 modular motors.

As for all you other questions read this thread

second hand windsors
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Old 02-06-2004, 18:22   #3 (permalink)
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Re: 4 bolt 351

thanx, thats sorta what i had figured but i wanted to double check just to make sure,
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Old 02-06-2004, 18:29   #4 (permalink)
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Re: 4 bolt 351

ok, so with the use of that link, i read about the early blocks being stronger,...go fig rite, lol, anyway i can use fule injection stuff on them if i have a fulie manifold rite? what about using roller lifters?
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Old 02-07-2004, 12:18   #5 (permalink)
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Re: 4 bolt 351

You can use the fuel injection just get a manifold to suit your application. Which roller rockers you get will depend on your head selection and engine combo, it has nothing to do with the block.
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Old 02-07-2004, 17:25   #6 (permalink)
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Re: 4 bolt 351

not rockers, lifters lol, i rember reading that engines started using roller lifters in the mid 80s well, the ho 302 anyway
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Old 02-07-2004, 17:54   #7 (permalink)
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Re: 4 bolt 351

sorry...my mistake i didn't read it properly ..... anyways you can use roller lifters in them...comp cams & crane both produce the conversion kits to suit solid roller & hydraulic roller...
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Old 02-08-2004, 00:17   #8 (permalink)
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Re: 4 bolt 351

Std roller lifters WON'T fit as the bores are too short and lifer pops out.The hydraulic roller lifters are somewhat longer...Why pushrods are so short..
An aftermarket cam/ lifters can be fitted but they have a small bass circle.Not realy optimal for hi performance, but o/k..
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