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Xavier

		Quote:			Posted by GoldWolfen
	I read a bit about port and polish, it can be done with a few inexpensive tools, and it takes some time and effort, and I have nothing much else to do, as my detector don't work LOL I think my Edelbrock intake won't need it, but the ports on the heads are a bit rough, they do fit the gaskets very well tho, so polish is all I'd need to do. Thanks guys.

Unless the whole Motor has been Blue Printed for Nascar Don'T Polish the Inlet Ports because the Rough Casting or Grinding Marks create Turbulance which helps the Air And the Fuel Mix Better before it goes in to the Chamber, Polishing has No Benefit to Street Motors, It only helps above 4500 RPM Under Race Conditions' Porting them Helps But Not Polishing.
As for the Marks On Your Pistons that Might have been caused by the Hydraulic Lifters Pumping Up, That's where the Excess Oil Can not get out of them and they go rock Solid and If you are using a Fairly High Lift Cam it will shove the valves Into the Pistons, Another Cause is If someone has had the Heads off it and Skimmed too Much Meat off of them, and if that is the cause you either need new heads or Fit Adjustable Rockers and Solid Lifters, Or Check out to see If you can get some Adjustable Push Rods, Unless its got over head cams the you can Buy Shims to go under the Pedistools. Or Cheat and fit 2 Head Gaskits

RR

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		Quote:			Posted by GoldWolfen
	Thanks RR, I've been reading about turbulence in the 'Rocket Heaters' too, I was wondering if the same applied to the ports on heads. The cam is 050 lift, and was at 8* advance, even with the lifters going solid, shouldn't impact the pistons, and the heads were not shaved at all, it should have run ok, but I only got sporadic fire on the first couple revs, then nothing. I'm interested to see what Melling says about the cam after they test it, I figure it's the wrong one.           GoldWolfen

Is The Cam A Regrind Or A New Billet, Just be wary of reground cam Cams because you Loose some of the Over lap, I use to use An Erson Viking That was about 580 lift and I always Used Competion Cams or Erson, when you fit Hi Lift Cams you should get the Lifters .002 Radial Ground so the have a smooth surface to bed in On and use lashings of Moly when Running them In. Coat the Cam and put some in the Oil as well,

The Lifters will Pump Up if you run standard Lifters with A Hi Volume Oil Pump even More So When Starting Because the Oil is Cold and Thicker.  When ever you fit A Bigger Cam you should always get them to Supply The Matching Lifters or you will have Issues Like This, Or Get your Old Ones recondioned.

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		Quote:			Posted by GoldWolfen
	Thanks RR, the cam is new, I cleaned the lifters well, they were new, but weren't used for that 6 years the truck was stored, and nothing is cold in Arizona in June and July, when I was working on this. I will know more once Melling tests the cam, but I'm pretty sure it's the wrong one, and I didn't use a high volume oil pump in it. I never liked double gasket, and this should run properly with just one.        GoldWolfen

That's A Bugger Mate, Aye. It does sound like the Lift is Too Big, But you say that it was stored for about six years?? Alarm Bells Ring    So I am thinking maybe condensation has caused Rust to Form On The Valve stems and they might be Grabbing the Guides and that's causing them to Kiss The Pistons, But Until they say If the Cam is Right or Wrong This is Just Speculation, Aye,

Let Us Know what the out Come is, ok



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Hi GW,

Say, did you by chance check the lift with a dial gauge before you installed it?

Dusty Carl

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A bad day at gold prospecting or metal detecting is better than a good day at work.