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I was digging though my stash of cams for a spare parts build and found an odd one. I could visually tell the lobes had quite a bit of lift so I didn't even bother but I did throw it in the v blocks to get some specs on it. Looks like it's a 250/245 duration at .050" tried to get duration at...

Just noticed one 2 different sets of rocker shafts, the oiling holes and orientation notches are completely different. Whats up with this? Seems like the rocker shaft on the right is drilled completely wrong as the wear pattern is completely offset from the oil hole. Could the shaft on the...

I've got a pretty mild solid roller 340 and a few different set of rockers i can run on it. The cam is a comp 288r solid roller. Currently it has a set of 1.5 harland sharp full rollers on it, one adjuster snapped and that led me to find out the roller tips are also out of round and the shafts...

Cracked open a pretty virgin looking 318 today. Found out that it has a forged crank in her. Does not look to have had the bottom end rebuilt, bearings have 68 date codes, has silent type cam chain, stock bore, and cast pistons. Busted open lots of 318's and this is the first i've seen with a...

Got a pair of rocker shafts, one pair is obviously not right. The set on the left came out of a 68 340 and the set on the right out of a 66 273. You can see the feed holes on the left pair are drilled correct and in the middle of the wear area. The set on the left has the holes drilled...

Was driving to work when i felt the 340 go down a cylinder and at a stop light i could really hear it tapping away. At first i thought one of the solid roller lifters took a massive dump but when i pulled the valve cover i found: harland sharp wants around 50 bucks for 4 adjusters...

Got an old solid flat tappet cam that i found, the cam card specs are 296/300 @ .012" 250/244 @ .050" .375"/.344" Lobe Lift .017"/.018" Hot Lash w/1.5 rockers 105 LSA that would this cam be good for? Seems real weird on the duration and lifts. Its also got a real tight lsa. Would probably...

Oh yay, another one of these... but bear with me here. I have two choices, both worth of my setup. A non-airgap performer rpm and a torker II 340. My setup is: .060 over 340 (~350 ci now) KB 243, I beams, forged crank 10.5:1 Static and about 8:1 dynamic compression ratio's solid roller .550...

I just got around to calculating my actual static and dynamic compression ratios, looks like ill be sitting right at 10.42 static compression and 7.61 dynamic.... i thought the dynamic compression sounds a little low but i checked and rechecked things and it all computes like that. Little info...

Hey guys, i just got my 340 assembly back from the balance shop. I thought the bob weight was a little high. Stock 340 forged crank turned .030 under, eagle h beams, .060 over kb243's. Here are the specs Piston 602.6g Pin 131.6g Locks 4.2g...

I have heard that some now use a larger 2nd ring gap so trapped gasses can escape into the crank case instead of unseating the top ring.... dunno if its true but the sealed power moly rings i had before filing had a top gap of about .019" and a 2nd ring gap of .022". I filed the top rings to...

I'm building a pretty mild .060 over 340, kb243's, h beams, ported j's w/ stainless valves, chambers at 66cc, .550 lift solid roller, around 10.5:1 comp 4 speed, 3.9 gears. Planning to spin it to about 7k at the most. I'm not one to cheap out on things like fasteners, but after looking at the...

Not to sure what i should do about the pistons and rods in my .60 over 340. I currently have a set of l2316 forged trw's and stock bushed rods, i just found out the top ring lands in all the pistons are wore out and you can stick a 8 thou feeler in between the ring and piston :-x For fun i...

I pulled the heads on my 340 and realized i have a .060 over block. The fire rings were basically in the bores! Looked around on summit but the larger diameter gaskets were like 66 dollars a piece !:thumbdow: No can do! Anyone run into this?

I thought early 340's were supposed to be x heads? I just aquired this 340 for a project of mine, i was hoping for 2.02 inch x heads, but they are J heads on a 68 block. Chance that it has 2.02 intake valves in it? The motor is very original. Never been apart. I did notice that the...

No clue who made this one or what it is... I searched my heart out to no avail... im thinking that the 105 is 105 deg lsa.. if so, that one heck of a lopey cam. thanks!