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273 pan won't fit 360, mains are bigger on 360 and pan has bigger rear gasket/seal radius

I have the 1.5's and they have been good. To do it over I would have gotten the 1.6 rockers. Geometry has to be set up but it isn't bad. They also have shims for under the shafts and for between the rockers and hold downs, I would get an assortment.

Comp has a solid lifter with a laser-drilled hole to oil the face of the lifter, you might ask them about it. As was said, make sure it starts up right away, and have the engine primed. Make sure it has at the distributor initial timing at least 10 btdc and run it for 20 minutes at 2500 rpm. I...

If the plug is not there the oil pressure will be low.

I have EDM's in mine, with HV pump oil pressure has been 25 idle to 70 @3000 with 10-30 oil. Standard volume pump in yours? I think with the 16 leaks the EDM lifters create a HV pump is cheap insurance, JMO.

Is the cup plug missing above the rear main cap, in the galley to make the oil go through the filter? You can check to see if it's in there by pulling the oil sender in the rear of the block and inserting a piece of welding rod down the hole. I checked 2 blocks in the garage and the rod went in...

Thanks for the info, I am doing a re-ring on a 4.3 chevy with low miles, moly rings, sealed power says 400 grit so I am going to get 400 grit.

What grit flex hone is best for re-ring jobs? I see Flex Hone has 120, 240, 320, 400 and even 600 grit hones, and different materials. I have used the silicon carbide, but I wonder if there's a better way. Thanks in advance

There should be a little preload, 030-060. If you look on ebay, etc, you may find a set of the 273 rockers which were adjustable pretty cheap. Or longer pushrods, you need to see how much you need to go. Where in Colorado?

Core shift happened when the block was cast at the factory. It refers to a variance in the thickness of the cylinder wall. If the casting core shifted at the foundry, it results in cylinder walls that are thinner or thicker. Only way to tell is have the block sonic checked before boring it.

make sure to prime the engine after you get it together, some of that wear could have been caused by dry initial start up.

AMC did use torqueflite transmissions but the bellhousing pattern is different. Probobly cost even more than mopar parts prices to soup up an AMC engine, but Indy cylinder head has stuff for the AMC engines. Have fun!

As far as exhaust goes, dual is preferred, but if you want to keep your single hopefully it's at least 2-1/2". On your 67 I'm not sure if you need a specific manifold to clear the drivers side. There are quite a few headers made for your application, tti and Dougs are 2 that come to mind.

True. Dot to dot on a small block is #6TDC. Cam at 12:00 and crank at 12:00 is #1TDC. But put a degree wheel on it to make sure everything is where it should be. They are inexpensive($100) from Summit and worth the trouble.

x2

85-87 318's should have the better heads on them and could run good with a small cam & 4bbl. Your 273 exh manifolds will work. But really, any 318 will work for your application. A 360 will run much better however.

check the catalytic converter, could be plugged

1 friday a month there is the Club Clash at Bandimere and its all street cars. You should bring your car up & just hang out with the mopar club. I will look for you in Golden as well this summer.

Its hard to beat the torque of a 4" stroke small block on the street. A hydraulic roller cam is a nice upgrade and aftermarket heads. Up at our altitude you can use more compression without detonation especially with aluminum heads. Also look at the FAST & edelbrock efi systems. For a street...

That would be me too

1990 3/4 ton pickup would use a 727, 904 pan is square with one corner cut off ant an angle, 727 is a little curvy around the dipstick tube area on the pan.

the Melling pumps come with a mounting gasket, I think fel pro gasket sets have one also.

Will the car be a street only car? You can make 500 hp with a 4" stroke SB at your altitude and it would be streetable. If it's a track car you can make more power and use race gas. But 500 hp on the street is plenty of fun and will do nice long burnouts, but with a 3200# a body, it doesn't take...

that head might be cracked or water came in through an open intake, either way, you have more fun ahead of you. I lean towards cracked head.

Great 318! 12's should be easy in an a body.

408 will work good in your car, lots of torque! I've had a 318, 360 and 408 in my car which is very similar to yours. You can build a 408 to 450 hp and it will be very streetable. Your stock motor mounts will not hold up, and drag radials will be the only way it will hook on the street. The...

The 4340 Scats are reasonable enough in price and better than the Eagle SIR rods in material (4340 vs 5140) I too prefer floating pins over press fit.

The 63cc Edelbrock heads work well on a 408. Since you have a cast crank, I would not build anything too wild, 500 hp is what they are rated for and I think that is an optimistic rating.

Is it a slant six? Perhaps with that cam your dynamic compression is low, I don't think the slants had a lot of compression from the factory, maybe 8:1. I have always set the timing on slants a little advanced from factory spec, like 5-10 btdc. Might help it start easier, but low compression...