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Don't put too much faith in the Dash one (360-1 vs 360-8) blocks being better either. As previously stated, the only way to know for sure is with a sonic test.

The "rumor" used to say 1976 or earlier, especially 71-74 blocks, had the same casting cores as 340's and therefore had thicker walls. I never went past .030 on mine. If you go to a 4.060 bore after sonic testing it does make a 372 or close to it. I did luck into a 360 4V factory shot peened...

A few points. If your engine is original to the car and has non adjustable valvetrain it uses a hydraulic cam. Not all 273 were solid lifter (mechanical) cams. They switched to hydraulic in 67, I assume to standardize parts between it and the 318. Also, if it is a 67-69 engine an intake...

:D OK. OK. I get it..makes sense. It was late.. I was tired. I have to say... it is contacting the valve tip dead center... nice geometry .

I'm not claiming to be an expert in valvetrain dynamics.. just repeating what I read in How to Rebuild Your Smallblock Mopar.. and what my engine builder told me. You guys might be right.. now if it isn't flat across the tip..... Anything that wears metal to metal is going to need some touching...

Judging only from the pictures, it looks like the tip which rides on the top of the valve has a pronounced "arch" to it.. might be time for a trip to the machinist to have the tip machined flat again. If some are worn more than others that might explain the lash difference.. it's possible they...

The tensioner was OE on the 3.9, and is now sold both as a a replacement part and in the MP small block parts section. Seemed like a good idea to me. http://chucker54.stores.yahoo.net/timchainten.html

Arco, Have you been smoking the drapes?:lol: Bleed down lifters change the rocker arm ratio? Is your set magic? Mine don't. They bleed down at low rpm effectively reducing the duration the engine sees for more vacuum, but they don't change effective valve lift. Especially not at anything above...

Dustoff.. concerning Stahl headers... I had forgotten about those. I wonder if the set I had/have would have originally been made for an earlier A chassis, thus the slip fit tube on the side they didn't need in the later chassis like mine? I'll brave the cold in a bit and get some pics to put...

I always used to think the real way to fix the ground dragging problem was to weld a set of caster wheels to the bottom of the K frame! Preferably "borrowed" off a large dumpster.... Once a long time ago (1983-84), I bought a set of used headers from a guy's trunk.. he'd had them on his 70...

I believe Ed Hamburger sold the piece that 67Dart273 described.. no idea if his business or that timing cover are still available.. it looked like a stock piece with the flat on top removed and a replaceable one screwed on... maybe an enterprising guy could mill part of 1 out and fasten a piece...

Looks like a nice crack near the spark plug hole.. maybe 2. Then add in the expensive rocker stands and hardware, since this set has the cast stands milled down,, not looking like such a hot deal to me. But what do I know? Are the EQ heads priced each or per pair?

To the best of my knowledge, the standard Edelbrock Performer #2176 or #3776 (not Air Gap, or RPM) is the only aftermarket aluminum manifold that has the offset water neck to work with the late style AC Compressor. I can take a pic of it if you like. I have one on a 318 in my garage. Other...

I've always heard it said to run an engine with the block in a BBQ pit and the heads in the icebox.......

Back in the early 90's, when Car Craft was into doing Big 3 shootouts, Dick Landy and Company built a 318 Duster and it wound up beating the 305 and 302 put up against it. They had tested the #302 head as well as the larger port 360 head, and it was determined that the #302 was the best...

I used that cam in a very mildly rebuilt 360 some years ago. .030 over, stock trw forged replacement pistons, nothing special. Actual compression might have been 9:1, and that might have been optimistic. In the 360, it only pulled about 9 inches of vacuum, until I added a set of Rhoads bleed...

L2316F at least used to be the TRW number for the 68-71 Hi compression forged replacement piston. Depending on actual deck height, actual combustion chamber cc's, depth of the valve notches if deepened over stock, and thickness of the head gaskets used, exact stroke of the crank, and rod length...

http://www.yearone.com/updatedsinglepages/Id_info/mopar/mopar%20casting%20numbers/castingnumbers.html Good tech stuff http://www.mymopar.com/index.php?pid=31

I'm sure a dealer can get you one...just FYI, I ordered one like my 99 Dakota has, and was surprised to find the plate wouldn't fit. They must have changed things a while back. If you order one for an older model vehicle, I'm sure you'll be just fine. Hope this helps, Alan

If you can find the one with the flats on the outer edge, they are less restrictive, as the center orifice is bigger. They are usually found on truck applications. Might be worth a little time on your back in the filth, it's good for building character! The plate can have anywhere from 4 holes...

Also be sure it doesn't have valve rotators on it, especially if the engine came from a truck. alan627b

Pull the rod and or main caps and see what the bearings show. Any gouges, scoring, bluing or unusual shiny areas? Any hammering evident between the halves of the rod cap? Or between the main caps and the block? You can check side clearances with a common feeler guage...and bearing cleances with...

Just so you know, the holes are for air injection, which was used to improve emissions and started appearing about 1987 or so , when TBI fuel injection showed up on trucks, vans and various Diplomats, etc. You might want to make sure you block off the air injector tube holes in the back of the...

I'd like to see a late 80's smallblock factory 4V manifold with 318 sized ports, all the ones I have ever pulled were the same as the 360 with slight port overlap, which doesn't hurt anything. Not saying they don't exist, I'd just like to see proof with a casting number and pictures. The...

http://www.buschis-place.de/sbheads_diff_porting.htm These guys will sell you ported heads outright, as will other outfits. http://www.aeroheadracing.com/id6.html http://www.hotrod.com/howto/113_0304_318_small_block_build/compression.html hhttp://www.allpar.com/mopar/LA-V8-engine-head-...

Get down to a newsstand and get a copy of the October 2008 Popular Hot rodding. They built up a 318 that cranked off 425 HP with a 9.7-1 compression ratio and Magnum heads. They used an aftermarket Magnum replacement head sold by Enginequest. Enginequest http://www.aaeq.net The cool thing...

I have a bum right shoulder, can't work and have tons of time to read old posts, so i thought what the hell? I will probably respond to a few more old ones, if i think can contribute something worthwhile.Or at least entertaining! Alan627b

I bought one, thinking how great it would be...and it doesn't fit the early pre-magnum engine. Probably intended for the Magnum engine, or at least the very late LA . Or, maybe I got screwed.....

360's were also designed to drag the ever heavier cars and trucks being built around, like the 400 Chevy smallblock, and needed torque more than rpm, thus the 3.58 stroke. Then came the gas crisis/emissions Nazi's and no lead, and all the manufacturers dumped the compression and put all sorts...

I bet that guy got his "pig" opinion back in the "old days" when it seemed like 360's and 400 B engines were long stroke, low compression slugs. Built at a time when the factories had questionable assembly procedures and quality control problems. My builder had the opinion that "Chrysler never...