351m cam

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Mar 2, 2013 | 09:12 PM

Bigolst

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351m cam

Hey guys. I have an 80 f150 ranger with a 351m. I'm ordering Aussie 302c heads ando I can't decided on what cam do go with the comp 252 or the 268. All the truck gets used for is to play in the mud and haul firewood. I already have a wieand intake and a holly 650. I have stock gears and currently on 35s but planning to go to 38s in the futre. Also wondering if anyone knew if the timing chain set that comes in the cam kit is strait up or oe. Thanks

Mar 3, 2013 | 08:58 PM

crsmiffy

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Joined: Jan 2011

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From: Tanilba bay NSW Australia

should be straight up, unless it has several keyways then you can set it up how-ever you wish. Dont know about the cam- but 268 is a good cam and if you ever have some spare cash and turn it into a 400 before the cam is shot it will be perfect for it.

Mar 3, 2013 | 09:24 PM

mark a.

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There is no way with a stock botom end that you will be able to take any sort of advantage of the quench style chamber of that head. The stock pistons are way too far below deck at tdc, not to mention the huge dish in them as well. Not really the right way to go about building compression. I'd get a 400 crank & set of tim myers flat tops, zero deck it and run the stock heads with some port work.

Mar 3, 2013 | 09:29 PM

crsmiffy

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From: Tanilba bay NSW Australia

If you were going to get new pistons. Get the ones to suit the Aussie heads and really do it.

Mar 4, 2013 | 05:19 PM

Bigolst

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I know going 400 is the the way to go but its not in the cards right now plus the bottom end only has 15000 on it. I just figured since I had to pull the heads to replace the blown head gasket I might as well put a better head back on and for $475 that's one hell of a deal. Thanks for the input.

Mar 14, 2013 | 01:14 PM

BuzzLOL

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Joined: Dec 2012

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From: Toledo, Ohio

.. X 3... I also vote for the inexpensive 400 conversion over putting anything into the 351M... and I have a 351M...

Mar 29, 2013 | 11:15 PM

hivoltj

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Joined: Apr 2010

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From: Billings, MT

The 268 out of those two. The 252 doesn't have enough overlap for the high static compression it will be a detonating sob. Better yet the XE262 is what im running on my aussie head build.