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Originally Posted by Full Force
(Post 4518299)
Nobody wants to guess cam specs on the latest pics I posted?
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and damn,,we've made it to
:party-smiley-004::party-smiley-004: page 30 |
Originally Posted by sutphen 30
(Post 4518320)
and damn,,we've made it to
:party-smiley-004::party-smiley-004: page 30 |
Originally Posted by MILD THUNDER
(Post 4518316)
Nothing to see here ....Its fine. Passed my cell phone rockwell hardness and imaging tests. :lolhit:
Allows one to diagnose internal engine component wear with only a few cell phone snap shots. How the hell did anyone ever build anything before the interwebs? |
Originally Posted by sutphen 30
(Post 4518320)
and damn,,we've made it to
:party-smiley-004::party-smiley-004: page 30 Come on fellas. We can do this. :angry-smiley-038: |
Its not too late to change things Tim. Let me throw this out there.
Bore the blocks to 4.560, throw in some 4.375 cranks. You'll have some 572's. Then, you may want to look at some 781 GM oval ports. Not quite a peanut port(too much torque with peanuts), but more of an Almond port. Around 250cc or so. Stick a 2.400 intake valve in there. Theres plenty of room. I would look at a cam, in the 218/224 range, with a .400 lobe. But this time, lets go with a 1.9 rocker arm, for 760 lift at the valve. Lets shoot for a throat diameter, of about 1.45, with the 2.4 intake valve. REALLY get the air moving fast. Mill the heads, idk, about .125. Get some compression in those things. I'm pretty sure, you can make 892ft lbs of torque, at 2600rpm, and about 260hp at 6000. It won't matter that the hp is down, because TORQUE is what carries the boat. Slap on a pair of custom 40 pitch mirage plus props, and 1:1 gears in those trs. You'll have a cruise speed of 50mph, at 2000rpm, right before it detonates so hard, it shears those arp rod bolts. |
Originally Posted by vintage chromoly
(Post 4518324)
Great machinist app.
Allows one to diagnose internal engine component wear with only a few cell phone snap shots. How the hell did anyone ever build anything before the interwebs? |
Originally Posted by mike tkach
(Post 4518307)
tim,why 3 pictures of the same lobes?
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Originally Posted by MILD THUNDER
(Post 4518328)
Its not too late to change things Tim. Let me throw this out there.
Bore the blocks to 4.560, throw in some 4.375 cranks. You'll have some 572's. Then, you may want to look at some 781 GM oval ports. Not quite a peanut port(too much torque with peanuts), but more of an Almond port. Around 250cc or so. Stick a 2.400 intake valve in there. Theres plenty of room. I would look at a cam, in the 218/224 range, with a .400 lobe. But this time, lets go with a 1.9 rocker arm, for 760 lift at the valve. Lets shoot for a throat diameter, of about 1.45, with the 2.4 intake valve. REALLY get the air moving fast. Mill the heads, idk, about .125. Get some compression in those things. I'm pretty sure, you can make 892ft lbs of torque, at 2600rpm, and about 260hp at 6000. It won't matter that the hp is down, because TORQUE is what carries the boat. Slap on a pair of custom 40 pitch mirage plus props, and 1:1 gears in those trs. You'll have a cruise speed of 50mph, at 2000rpm, right before it detonates so hard, it shears those arp rod bolts. |
Originally Posted by vintage chromoly
(Post 4518324)
Great machinist app.
Allows one to diagnose internal engine component wear with only a few cell phone snap shots. How the hell did anyone ever build anything before the interwebs? |
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