estimate my 521 build for my old school monster truck - 460 Ford Forum
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post #1 of 7 (permalink) Old 03-02-2016, 12:04 AM Thread Starter
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estimate my 521 build for my old school monster truck

521 stroker rotating assembly
30 0ver pistons
flat tops ~ 13:1
ford racing high volume oil pump
d0ve heads- gasket matched intake and exhaust. amateure port job. stock size valves.
howards hydraulic roller cam- part number 243545-10 .652 lift intake and exhaust, 110lsa, duration at 050 lift 249/255 advertised duration 302/308
msd ignition- 6al, distributor, blaster 2 coil
ford racing plug wires
long tube truck headers
edelbrock performer rpm air gap intake
quickfuel 1050 carb
running on e85!!!
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post #2 of 7 (permalink) Old 03-02-2016, 07:02 PM
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I would not call this an estimate. I'd call it a guess but I'll say it will be about 580 to 610 HP.
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post #3 of 7 (permalink) Old 03-03-2016, 12:44 PM
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You are not going to like the valve trane geometry with those tall hydraulic roller lifters.
Rob

Rob Hawes-Anchorage Rod Works-Anchorage, Alaska
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post #4 of 7 (permalink) Old 03-04-2016, 04:16 PM
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Rob's right, that hydraulic roller is NOT the way to go

If you're not living on the edge you're taking up too much space!
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post #5 of 7 (permalink) Old 03-09-2016, 11:01 PM Thread Starter
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Quote:
Originally Posted by White Lightning View Post
You are not going to like the valve trane geometry with those tall hydraulic roller lifters.
Rob
can you explain why i wont like the geometry? the place i ordered the rotating assembly from reccomended this cam for what i am putting the engine in.
thanks
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post #6 of 7 (permalink) Old 03-09-2016, 11:03 PM Thread Starter
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Quote:
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I would not call this an estimate. I'd call it a guess but I'll say it will be about 580 to 610 HP.
thanks for the reply! my goal is 600 so i will post what the numbers are when it gets dynoed
thanks
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post #7 of 7 (permalink) Old 03-10-2016, 07:36 AM
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Quote:
Originally Posted by dig-n-deep View Post
can you explain why i wont like the geometry? the place i ordered the rotating assembly from reccomended this cam for what i am putting the engine in.
thanks
I'll say it so there is a chance you could still change the cam & lifters in time. The place you ordered the parts from clearly aren't experts on the BBF. I believe the issue is the lifters are taller and it puts the pushrod at a goofy angle. Will it run? Yes. Is it the way it should be for the kind of engine you want to build? No. Lots of guys have gone before you and learned this lesson with broken valve train parts the hard way. CrittersF1 & Whitelightning know what they are talking about. I'd go with plan B if there is still time.

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