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Can you please post a pic of vin numbers stamped on the machined pad on the passenger side of the main case?

NHRA class rules for superstock dictate the as delivered from the factory accepted CCs for cylinder heads. They fill the bottom of the ports to be able to raise and re-shape them for better line of site and airflow potential. It's been proven many, many times that improving the line of site and...

Can you please post a picture of the vin numbers stamped on the top rear driver's side of the block near where the transmission bolts on?

Can you please post a picture of the vin numbers stamped on the raised pad on the passenger side of the main case?

4" bore, 3" stroke 728 hp @ 9400 rpm. older X block without the extra head bolts, single 850 carb, wet sump oiling system.

The engine was originally designed in the 1990s for that rpm range based on what was standard practices at that time. 372 cubic inches, splayed 4-bolt mains added after cap walk was found during freshening, tubed lifter galley, W2 heads, Holley Pro dominator tunnel ram, two 750 Holleys, long...

Each setup cost somewhere north of $7,000+ each, probably $10,000+ each..

Was the intake actually bolted onto the heads or just the gasket set on it with the bolts in it to line it up? Could be the gasket bolt holes are off and the actual ports line up when bolted to the heads. Could also be the intake bolt holes are off and need opened up to line the ports up.

Phantasm, made in1979 and the sequels are great car themed scary movies, the original one is probably the scariest car movie ever.

I run PAC 1355 springs on the intake valves. New intake springs are installed @2.100" and have 450# spring pressure at that installed height. 780# spring rate and 1.130" coil bind. 1200# @ 1.175". They lose roughly 50# after break in. The collapsed spring has 295# at that installed height. The...

Did the OP find the root cause of his problem? I'm betting on weak/ permanently compressed springs causing bounce and hammering on the rocker as the cause. Here is a pic of 1 new, 1 compressed spring. Both from the same batch/ manufacturer built date. The weak/compressed spring caused valve...

Mine have all the bells and whistles including cryo treatment. 450# spring seat pressure, 1000+ at max lift.

Can you please post a picture of the VIN numbers?

I had something similar happen to me last weekend. .982 lift and 9800rpm. Only the second time I've broken a rocker arm.

I've ran copper heads gaskets for many years, 25+ and never blew a head gasket. O-ring the block, use studs, and use Hylomar around the water jackets. They don't require a special RM finish like cometic ones do, better heat transfer between the block and head, nearly impossible to burn out or...

I also have a pair of X heads and stock 68-70 intake for sale that can go with it.

Can you please post pictures of the 1970 340 block casting date and vin numbers?

They are speed pro forged pistons.

Can you please post a picture of the vin numbers stamped on the passenger side of the oil pan rail just below the casting date? I'd gladly buy the car if it's my long lost engine and transmission to my fm3 swinger.

730hp should be very low 9.0s, high 8s @2700lbs.

I have 3 1968 dart driver's side front fenders. $150 each. NO SHIPPING! Located in west Middlesex, PA 16159.

Forgot to mention pistons are forged.

Heat range looks OK, left bank rust is from coolant/moisture finding it's way into the chambers, melted electrodes are from polarity/grounding/ECM issues.

No I do not.

NO SHIPPING! I have a freshly rebuilt, never ran since rebuild, 1970 340 for sale. 3/4/70 casting date, 1B366470 vin number. .040 over fresh hone job, line honed, reconditioned rods, forged crank, balanced, new cam bearings, new Hasting rings, Clevite bearings, gaskets, Melling oil pump, double...

NO SHIPPING! I have 3 driver's side fenders off of 1968 darts. All are very usable condition. $150 each. Cash only! NO SHIPPING! Located in western PA zip code 16159. 15 minutes from Youngstown Ohio, an hour north of Pittsburgh PA, an hour south of Erie. PA.

Bruce Toth @ toth performance was selling reproduction ones a while back. Google him for contact information.

Can you please clean the machined pad just below the casting date on the passenger side of the block near the oil pan rail and post a picture of the vin numbers stamped on it?

It would be great if all the owners of 340s they've collected over the years would post the vin numbers of them. Even if they have no desire to sell them, guys looking for their long lost engines would be thrilled to know where they ended up.

Can you post the vin numbers on the engine and transmission?