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Showing content with the highest reputation on 03/15/2020 in all areas

  1. 2 points
    FORD_MAN

    302 Cleveland to 351 convertion

    Hypertec make a dished (12cc?) piston to suit 351 crank & 351 rod with closed chamber heads($438.61), or can open up the chamber a bit with burr & use flat top piston, https://www.precisionintl.com/StockSearch.aspx?Search=PFO351C81H Hypertec also make shorter piston suit 351 crank & 302C rod, flat top $438.61 https://www.precisionintl.com/StockSearch.aspx?Search=PFO351C683H zero decked 351 with flat top & closed chamber heads are easy 11.3:1 or standard deck around 10.3:1, zero deck 351 with dished 10.1:1 also known for the locks to pull through standard retainers over 5500, best to upgrade valve springs, retainers & locks, & is needed for larger then 0.500" lift cam
  2. 1 point
    bear351c

    302 Cleveland to 351 convertion

    Keep it under 5 grand, it'll last for years. At 6 grand the stock valves will pop there heads off and play with the pistons, and the 5/16" studs holding the rockers in will let go. Each scenario makes a very distinctive noise, you'll know when it happens.
  3. 1 point
    Boingk

    302 Cleveland to 351 convertion

    Yeah mate it was all pretty standard stuff. I didn't open the block up at all as it ran well and kept good oil pressure - I just replaced the camshaft, timing set, lifters and intake. Standard pushrods, new hydraulic HT900 lifters from Elgin. I'd recommend new springs and retainers for your valves, but honestly mine was fine with the stock stuff. Mind you it wasn't being used hard, just the occasioanl hard run when getting onto the open road. It's still on the road, too, so can't have been too much trouble for the new owner.
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