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I'm not sure what it's like in CA but here there are a number of places that will accept old gas as long as it's in an approved gas container.Just pick up a couple cheap used ones from CL to hold the gas. When you have the car jacked up,a good plan is to use one of those boat gas hand pumps...

Sounds like something for sale on ebay with lots of exclamation points in the description and a stupidly high buy it now price.

as far as I know,904 autos don't have removable bellhousings so you would have to get a small block 904 trans if you're going from a /6 to a SB V8.Luckily,they're pretty easy to find.

For what it sounds like the type of driving you'll be doing in your car,302's all the way.340/360 big port heads do give you a bit more top end power (5000+ rpms)but at the expense of the bottom end torque and throttle response you'll want the other 99.9% of the time. If you want the engine...

I want to check out this build.

That looks like one of those rare 340 marine blocks...:toothy10:

Ok,I was under the assumption that they changed over for the 73 model year but maybe it was sometime earlier.Does your car have the original motor? if it does,is it a late build date?

All 340s have forged steel cranks except the 73s which will have a special crank damper that says right on it that it's for the cast crank only.Here's a picture of one.

Thanks for the info and advice,selling it on here to someone on here with an earlier 273 then using the money for an LD340 does make the most sense. There's been a few listed lately so I'll check for availibility then list if for what the best price on an LD340 is.

You're full of great ideas,I should have just contacted you directly...:-D

I have'nt miked the bores yet but there is very little ridge at the top of the cylinders so it might not need another overbore,I hope. The rest of the engine internals are pretty clean but yeah,the piston tops are pretty grungy.I think the carb might have been running pretty rich as a lot of...

Are you looking for one? I'll be looking for a LD340 intake so I'd be interested in trading or would sell it for what the going rate on one of those is.

A previous poster had a link to a site which sells those pistons (Sealed Power) and the part number and description matched up so I'll go with that for now. It sounds like they're a stock replacement piston for the earlier 340's but with slightly lower compression for todays gas and they're...

A quick way to check the condition of your timing chain is to pull the distributor cap off and check the movement of the distributor rotor as you turn the motor over by hand going one way then the other.You can do this with a socket and breaker bar (or ratchet) on the front crank bolt or just by...

Thanks for the info.10-1 compression sounds pretty healthy so hopefully I can keep those pistons and just re-ring them.None of them were labeled which cylinder they came from so I probably don't want to use the old rings again.

Thanks again for the heads up. I just had a quick peek and it looks like someone might have made them to work with the later heads going by ovaling the holes on the cylinder head end.It does'nt look like too brutal of a job and some of the holes have fairly deep thread marks inside them so they...

I looked up the casting numbers for the heads and the 3671587 is the correct head for a 73 340 and was also used on 73-74 and 76 360s. The 3418915 would have been from a 71-72 340 engine or a 70-72 360 so it would be the one that's been replaced along the way. I wonder if there's any...

Thanks for the clarification on that Darwin.Maybe I could use that intake on my 273 for now instead of the stock heavy iron 4 bbl one that I was going to use. I should measure the ports on the '302' heads and see if they're a close match or just bolt it onto the stock heads and see if it wakes...

I kind of suspected the valves may have been upsized or maybe one or both the heads are from 71.I'll have to find out what years those castings are from.I've heard of the '915' 340/360 head but the other casting I'm not sure about.

I'm also wondering if the bores and pistons are oversize.I found a "40" stamped into each piston top so I think they might be .040" oversize which means the block has been overbored already.There's also what looks like a date casting on the inside of them which is a "76" on the top line and...

I picked up a disassembled 340 today which the owner did'nt have any history on except he was under the impression that the motor was original to his car which it was'nt.I'm not sure about some of what came along with it so hopefully someone on here can shed some light on it. The motor is a...

been there,done that with the 180 degrees out.Also make sure your firing order is set in the right direction,clockwise for small blocks.

Actually it was a co-worker of mine that got locked on the roof but I was the guy in the hallway who brought the Campbell guys up when the door would'nt open.Was that you who was trying to get the door open? I vaguely recall that the Campbell foreman was there (can't recall his name) and a...

The 10.5 compression commando motor has domed pistons to raise the compression ratio and a slightly hotter mechanical cam.I think the specs are something like 248 degrees and .425 lift so nothing too serious. Not sure if the heads are any different but apparently some 273 heads are better than...

I just found the email update tonight so I'm about a day late for Francellis this week but I'll try to get there next Saturday and keep and eye out for your car. Unfortunately my car's in storage and not inspected or registered in BC yet so probably won't be on the road this year,but definitely...

Excuse me while I hijack your thread for a second,I stumbled across it this morning while looking for 273 info for my car and saw the part about you being a carpenter and soon to be looking for work. I'm also in Victoria and am looking (again...) to find a carpenter for building a garage later...