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Old 02-24-2016, 06:48 PM
  #621  
Geronimo36
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Originally Posted by vintage chromoly
Just built a 446 for my coronet. We called dave crower and ordered a custom cam and their EDM lifters.
Solid flat tappet.
It has 30wt. Brad penn in it right now for break in. We started it and broke it in on the outer springs.
It's too damn salty on the roads to drive it now, so only 1/2 hour "break in" so far.

I'm still nervous about the cam going flat, but we did everything we could to mitigate it.
Cool! I bet it's fine. It's just the first start-up jitters!!! I've heard of guys painting white marks on the push rods and firing the engine up without the valve covers to make sure they were spinning!

Would love to see some pics of the car!
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Old 02-24-2016, 06:48 PM
  #622  
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Originally Posted by Panther
The Crower falt tappets with the oiling hole seem to be the only tappets worth anything. I wont run a flat tappet anymore with the all the tappet horror stories I've heard and seen myself.

I've been running these and so far so good after 40 hours last season; http://johncalliesinc.com/product.php?ProductNo=5045
I was actually joking, but my brother has 4 seasons on his Crower oval track solid flat tappet in a 383 stroker. He used the EDM lifters, seems to be working fine in his Glastron. With today's oil I think the ZDDP additive is a must.
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Old 02-24-2016, 06:53 PM
  #623  
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Originally Posted by GPM
I was actually joking, but my brother has 4 seasons on his Crower oval track solid flat tappet in a 383 stroker. He used the EDM lifters, seems to be working fine in his Glastron. With today's oil I think the ZDDP additive is a must.
Cool. My Panther (boat before this one) I was running solid flat tappet and the engines ran great for many years!

Hopefully the chinese metals are getting better. lol I hear ya on the ZDDP!
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Old 02-24-2016, 06:58 PM
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Originally Posted by Black Baja
Don't bet on it. You'll probably lose a few hundred rpm with that carb.
Why would that be?
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Old 02-24-2016, 06:58 PM
  #625  
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Originally Posted by Panther
Cool. My Panther (boat before this one) I was running solid flat tappet and the engines ran great for many years!

Hopefully the chinese metals are getting better. lol I hear ya on the ZDDP!
Hard to say on the Chinese metal, I could do without it. I just bought a custom solid flat from Bullet for an LS6 454, hoping to get it on the dyno in the next week or so.
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Old 02-24-2016, 07:07 PM
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Originally Posted by vintage chromoly
Just built a 446 for my coronet. We called dave crower and ordered a custom cam and their EDM lifters.
Solid flat tappet.
It has 30wt. Brad penn in it right now for break in. We started it and broke it in on the outer springs.
It's too damn salty on the roads to drive it now, so only 1/2 hour "break in" so far.

I'm still nervous about the cam going flat, but we did everything we could to mitigate it.
what compression ratio&cylinder heads.i built a 440 .030 over for a street car a few years ago ,just under 10 to 1 with hyd flat tappet cam that made 440 hp.
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Old 02-24-2016, 07:14 PM
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Originally Posted by ARB38
Why would that be?
Cause his $900 upgrade that is suppose to make 20 more horsepower than anything else actually makes 30hp less than an out of the box Holley.
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Old 02-24-2016, 07:20 PM
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I have close to 20 years now on my hydraulic flat tappet 505". Still runs great! Running an Ultradyne 239/247, 296/304, 110LS, .575/.600. Comp Cams lifters. Run Valvoline 20-50 Racing which has plenty of zinc.
Last edited by picklenjim; 02-24-2016 at 07:40 PM.
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Old 02-24-2016, 07:41 PM
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Originally Posted by Black Baja
Cause his $900 upgrade that is suppose to make 20 more horsepower than anything else actually makes 30hp less than an out of the box Holley.
I've seen nickerson's work, and would have to agree with that statement.
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Old 02-24-2016, 07:54 PM
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Originally Posted by Panther
Cool! I bet it's fine. It's just the first start-up jitters!!! I've heard of guys painting white marks on the push rods and firing the engine up without the valve covers to make sure they were spinning!

Would love to see some pics of the car!
I watched each pushrod spin before we put the intake on.
It is nerve racking to start a fresh engine. I rigged a mech. Oil pressure gauge and had the timing right on.
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