Dad's Engine Build

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Old 02-27-2014, 06:49 PM
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Dad's Engine Build

Just as an fyi, I have a thread going on the 80-86 forum called Dad's Engine wherein I'm detailing out the work on the "stroked 351M" I'm building. Here's today's post regarding my order with Tim:
We almost finalized the order today, but got it close enough for me to pay to get it started. Here are the bits and pieces:
  • Tim's pistons for the Trick Flow heads to give 10.5:1
  • Moly rings
  • Bearings - Tim's special cam bearings, rod, and main bearings
  • Intake - Weiand
  • Heads - Trick Flow 195's with stainless valves and springs to match the cam
  • Pushrods to match the heads, cam, and rockers
  • Scorpion roller rockers
  • Comp Cams custom grind Pantera roller cam
  • Tie-bar roller lifters
  • Timing set - roller
  • Gaskets, soft plugs, etc
  • Oil pump - standard
  • FlowKooler natural aluminum water pump
  • Balancer
  • ARP head, main, and rod bolts as well as oil pump drive
The pieces we haven't settled on are the carb, as discussed in Dad's Carb Choice, and the ignition. Tim is suggesting the MSD 6AL box and a pigtail that allows it to be used with the Ford dizzy.

So, I'm looking for input on the ignition. I already know what Bill thinks, but welcome his reasoning and that of all the rest of you. Please chime in.
I would love to have y'all's input, so please join in. But I don't think I'm up to keeping two threads going on the same topic, so will use the one in the 80's forum as that's where I usually hang out.
 
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Old 03-11-2014, 12:41 PM
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Just posted this in Dad's Engine on the 80-86 forum, but thought y'all might be interested.

Picked up the rods after having them shot-peened. Here's a before pic after I had smoothed them and then blasted them with aluminum oxide to ensure they were clean as I didn't want any impurities to be hammered into the surface.




And here's an after they were shot-peened:




Then a close-up of the numbers, for reference, showing the surface texture:

 
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Old 03-11-2014, 09:49 PM
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Those are some nice looking rods, they should be very durable!
 
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Old 03-11-2014, 10:06 PM
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Thanks! That's what the guy that did the peening said. They are really in business to do aircraft stuff and their big client is American Airlines. So they "do it right" with an analysis of the material to select the shot and the pressure, and then use a test strip before and after to ensure everything is correct. He basically said I won't be able to break them.
 
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Old 04-01-2014, 04:02 PM
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I don't plan on paralleling my Dad's Engine thread in the 80-86 forum here, but thought y'all might enjoy today's post:
Called Tim this morning and during the conversation he said the heads would be here today. Yeah, right! I didn't fall for that as this is April Fool's Day.

Then the doorbell rang and the distinct sound of a 10 cylinder engine suggested the UPS truck was in the driveway. And, sure enough, he brought the heads!







Intake port:


Exhaust port:
 
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Old 04-01-2014, 10:13 PM
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Trick or Treats

Guess you got the treats!!
 
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Old 04-01-2014, 10:34 PM
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Yup! They are pretty! Hope the engine runs as well as it is going to look.
 
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Old 04-03-2014, 09:21 AM
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. I see 4 or 5 ridges in the ports I would smooth out... also some razor sharp edges to smooth in the combustion chambers to prevent detonation...
 
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Old 04-03-2014, 09:42 AM
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I haven't looked them over closely yet, but will talk to Tim about any smoothing. The edges in the combustion chambers should be smoothed, but not enough to make any reasonable difference in the CC's. However, changing the ports might be counter productive.
 
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Old 04-03-2014, 09:57 AM
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. Also, smooth sharp edges on piston tops/valve reliefs, if any...
 
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Old 05-02-2014, 11:45 AM
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Got this in from Tim yesterday. We haven't settled on the cam as I'm wanting to maximize low end torque and MPG at the expense of HP. So Tim is running a few more desktop dyno runs. But, I think we may be getting pretty close.
 
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Old 05-03-2014, 12:09 PM
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. Kinda a toss up on first two cams... 1st one prolly best overall... takes 2nd cam till 4250 RPMs to get ahead...

. 3rd cam looks kinda small... drops off at high end... yet little low end improvement...
 
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Old 05-03-2014, 12:13 PM
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The top two runs are with the same cam, but the top one is advanced 4 degrees over the middle one, which is straight up. If I go with that cam it will either be installed or ground 4 degrees advanced.
 
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Old 05-03-2014, 01:23 PM
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. Is this still a 408"? ... 550 HP looks rather stout... getting it by 5500 RPMs is great... as is 500 HP by 4800... what are the spec.'s of the top cam?
 
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Old 05-03-2014, 01:42 PM
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It is still a 408. And Tim says the cam, for both top two runs, is
* Int 208 duration .576” lift
* Ex. 212 duration .553” lift
 


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