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#41
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See, Dan told me where to shift it but I did not think shifting so low was cool. I let it rev to 6200 or higher. Then one day I red lit and just got pissed and clicked it into 2nd, then 3rd like bang,bang and ran it out with my foot to the floor. Best ET ever. I just built on that. And this was when the valve springs were well past their prime. If I shift at the right point the car jumps and you see it when you get your slip. Let it shift too high and the shift is kinda soft. And you would think RPMs= rear tire speed. Just does not work out for me. Its not like I do not think with the right cam as cast iron heads can not pull past 6K. Super Stock guys do it. But they go through a lot of cams finding the right one and keep the info close. I think a lot of your work, your posts. My thoughts on this are out there on this but I will lay off it in this thread. OP has a point. I want to see how this 455 HO with your works ends up. BTW, my heads need rebuilt. I would like to see that your valve job and Dans port work do on the bench. Never flowed them. Last time I had the intake off you could see oil on top of the intake valves pooling. The ex side needs milled again. Need spray welded and no one does it here I know of. Not to many guys left I would trust with my heads. |
#42
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Here is Paul's excellent balance work. Someone made an attempt previously to neutral balance this thing, but it wasn't even close.
Before and after pics. |
#43
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Balancer before and after
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#44
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Flexplate before and after
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#45
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Hey Braggingcar do you drive your car to the track and run a full exhaust system?
Shifting at 5500-6000 doesn't go any faster homey
__________________
It is easier to fool a man than it is to convince he has been fooled |
#46
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You got the pics reversed. They are after and before.
__________________
Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
#47
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Baaaaa!! LOL I'm not the best at this but hopefully guys reading get the idea.
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#48
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I said I would not get into that here anymore. Its not fair to the OP. I will make a thread and we can discuss there.
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#49
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Some teaser pics.
Pistons are on the rods. Bearings are all prepped. File fitting rings now. Crank will go in when the rear main seal gets here. Then it's #1 piston time and degree the camshaft. |
#50
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Some other details.
The pistons were originally set up too tight in the bore at .003". They called for .004 to .0045". So Paul honed the cylinders with a torque plate and found the previous shop never machined the block with a torque plate. As soon as Paul touched the bores there were places throughout all the bores that the hone didn't even touch, they were way out of round. Luckily honing to the proper size of .001 to .0015" took care of it. Dodged a bullet there otherwise it would have been an overbore and new piston time. The block wasn't decked properly either. Can't remember if Paul said it was lopsided or which ever way??? but it required a fair amount of material off to correct. The rods were also a mess. The big end was honed .001" too tight and the small end was setup too tight and started scoring the pins. Luckily caught that early, Paul polished the pins and was good to go. Also found the rod bolts were 1/4" too long and wouldn't stretch properly when torqued. So Paul resized the rods to the proper dimensions with new bolts, and honed the small end for proper clearance for the power level we are expecting. The heads needed all new guides as Paul found they had .004" clearance. With the cheap umbrella seals this thing had it would have been an oil sucker. Now has all new guides and valves, positive seals, and I think you know the rest as I believe I talked about the heads and the flow numbers Paul picked up with his valve job previously. This thing will rock the dyno soon. Thanks to Paul for all his attention to the details. |
#51
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#52
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Quote:
__________________
“It takes considerable knowledge just to realize the extent of your own ignorance.” Dr. Thomas Sowell |
#53
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Dan Barton surly knows how to port heads and the 455 HO head and a Mopar 906 casting 440 head are very similar but for the valve inclination angle and the 440 head starting off a good 10 CCs larger in Intake port volume then the HO head.
I have reworked a 440 906 head casting up to 292 Intake cfm with a 2.14" valve and felt sure about the port wall thickness that was left and I can only assume that Dan stopped his HO head rework at 280 cfm to give a good safety margin also!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#54
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Nothing wrong with the port work. Paul flowed several ports and they were all within 1 cfm of each other. That's excellent doing this stuff by hand. So Dan does do excellent porting.
The rest of the cylinder head sucked.. I can only assume the machine shop was responsible for the rest of the head setup because I can't imagine Dan would have let heads with so much porting effort go out the door with sloppy guides, umbrella seals, horrible springs that were so weak they were rotating in the pockets and eating the retainers, used 2 piece valves in it, and then not even bother to put hardened seats in either. It was actually Paul's valve job and new set of Ferrea 1 piece valves that picked up the flow over the 280 mark, but what was the most impressive is 31 cfm picked up in the low lift area after Paul did the valve job. I think Paul and Dan could get together and exchange ideas and come up with an excellent cylinder head. Obviously Dan ports a good head, and with Paul's knowledge he made it even better. |
#55
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Those heads were ported in 2003. I'm not sure what guys were doing back then for valve grinding compared to what's being done now.
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#56
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Paul putting hardened seats?
Were the seals leaking? |
#57
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I did install hard exhaust seats, and it had umbrella seals, so I installed Viton positive seals. The blue ones with garter springs.
__________________
Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
#58
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Were the seats pounded and the seals leaking?
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#59
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No the seats wern't pounded but if used on the street regularly, they would have been before too long.
Can't tell you if it was smoking or not because I never saw it run. Guides had between .004" and .005" wear in them so I'm sure it was trying to suck some oil down the guides. What difference does it make anyway? I'm not putting umbrellas back on a head I can put a good seal on. Hard seats means the difference between a 30,000 mile valve job and a 100,000+ mile valve job. I've seen Pontiac exhaust seats recess 1/8" in as little as 10,000 miles in street use. Especially when you spring it for a roller cam. The springs that were on it were singles with a damper and barely made 90 lbs. on the seat, and 225 open. Way too little for a Pontiac head.
__________________
Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
#60
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Maybe Dan did exactly what the customer asked for. Also who knows just how much Dan was involved in the build. Dan never worked for the shop that built the engine as fas as i know (he just rented space there for his porting business and would help them out when asked) Also if this new build sees 100,000 miles ill be VERY impressed! Almost no one i know drives their Pontiac that much. So if the owner does that's great! |
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