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chilton 273 318 head torque spec says 85 ft lbs in low compression engines but does not mention what it would be for the commando ....just says 273 318 .. it says the 340 is 95 ft lbs. wouldn't you think the commando with 10.5 compression will be torqued at 95 ft lbs also like the 340...

anyone use these copper head gaskets for there sb mopars made by SCE ? opinions please . specifically looking for 273 high compression head gaskets to use instead of composite . or cometic MULTI-LAYER head gaskets .

Just landed another Clean 273 commando short block . short block is completely taken apart except for 6 pistons and rods .. crank is out . engine is with stock specs . all standard bearings .. I got 2 pistons out , rest are stuck. Question is ...... what solvents are you guys...

Getting around to building my second 273 engine that came up with rod knock. I'm thinking about using this erson SOLID cam again ......... only difference is going with high compression 10.5:1 stock dome pistons . closed chamber heads again ld4b headers 4 speed. This cam was...

I can't remember if I posted a video of my rebuilt commando 273 commando engine in a 65 barracuda formula S from early this spring 2018 .. so here it is...... putting some " Fire in the Hole " breaking in the cam . since then, I have at least a 1500 miles on it now and it's running...

Checking the rod and main bearings to see how they look. Everything looks great ! NICE Crank ! CAN ANYONE DECODE THE NUMBERS ON THESE MAIN AND ROD BEARINGS? Look to be all standard mopar bearings . here are 2 pics of the rod and main bearing numbers . the 466 number is the mains . This 273...

Are steel shim head gaskets made of embossed steel like they are described as or are they made with a composite material like felpros? I've seen a pair on the internet saying they were the steel shim gaskets but they looked like they were composite like felpros. this image is for a 273...

I'm starting page and will be posting pics and info building my 273 commando. This engine I'm using is an original engine with 70K miles on it . Has the oem high compression pistons with a standard bore . I will be installing my closed chamber 920 heads, headers , ld340 intake and a custom...

wondering how much of an improvement will a stock 273 commando take before it won't climb anymore in hp/ torque ? would it be wise to go a few sizes larger with a cam? or did MA mopar have the specs right on ?

what solid cam are you all using that is equivalent to a hyd 268 cam ? I have a big erson solid 510 lift - 284 dur, 2000-7200 rpm range in it now , just does not have the bottom end torque and takes too long to whind up. it is going into a non commando 273 . 4 speed, headers ...

I got the new hooker super comp fender well headers installed on the 273 commando. here is a video open headers Cold start . erson cam 286 dur , 510 lift solid. Sounds NICE ! Click on the "sign in" Sign in - Google Accounts

I haven't seen this question answered yet here. I went set the lash on my solid cam today and noticed a couple on the adjuster screws are too easy to turn when setting the lash. there is a tiny 1/8" hole on easy rocker hole in the rocker where you can see the threads near the cup of...

would anyone have an old erson cam spec catalog ? I need to know the specs of this erson cam > This is what is stamped on the end of the cam 1m286y it's a high flow cam for a 273 mopar sb. I did call erson cams and john gave me a website to look some info up but didn't find what I was...

Picking up a 273 engine that has a rod knock for parts .. block is stamped 1969 , the heads are stamped 920 and the pistons have 4 cutouts for valve reliefs, adjustable rockers It appears that is has been rebuilt at one time and items were switched from one engine to another. my question...

I have a technical question for you guys .... My engine is a bone stock 2002 mopar magnum crate 360 stroked to 402 cubes. spec sheet says it is a 9:1 compression engine.. well how can that be if I just did a compression check on it hot and the butterflies open on the carb >>> all...

I have the pertronix ignitor III and the flame throw coil.... issue I have with mine is I can't feel when it hits the rev limiter... is it suppose to feel like a "pop pop pop" like a msd unit or just stop revving any higher when it reaches the limit set at. Thanks ! john...

here is a video of the 273hp smoking bad before and valve guides seals installed . http://s446.photobucket.com/albums/qq185/stroker402/?action=view&current=07ff8799.mp4

say ! what are you guys all running for timing on the 273 commando engines. My dartcharger 273 has all stock internals with dougs headers and ld4b intake.. I also have the pertronix III and flame thrower coil . oem carb , 2.5 exhaust . distributor is curved 34* 18* initial.. with light...

I had a bad issue with oil burning and smoking out the pipes ......So I replaced the valve guide seals on the 273 hp charger , the oil seals were desinagrated as you can see in the pic. and found all these pieces laying under the valve train gear. . alying on the head . Well , I...

on a 65 oem 273 commando engine ... how many valve springs per valve ? I thought the commando engine had two valves springs per valve and maybe a dampener too loke the 340 . my 273 only has one valve spring per valve. just wondering if it may have had a valve job over the years and...

time to replace valve seals on the 1965 273 dart charger engine. question is >> what style umbrella rubber seals go on the oem 65 273 commando head? I did not pull them out yet to see what style is in there.. My over haul gaskets sets have two different length rubbers seals...

I have complete bone stock internallly >>> 273 dartcharger with all the good stuff.. has the 10.5:1 compression .. I checked the cylinder pressure with a compression tester .. engine hot with carb fully open . and numbers are between 180 -182 lbs/in. is that normal for this engine ? seems...

1965 Plymouth Barracuda 273 engine on dyno - YouTube here you go guys .. Watch how this little commando loves to rev to 7500 rpms... . awesome ! I had lots 340 darts that never revved like a 273 commando does.. Go up on youtube and read what the engine specs were ...You...

Could someone please tell me what the valve lash specs are on a 1965 273 commando solid cam engine please ? Also the torque spec on the rocker arm bolts ? Thanks ! greatly appreciated. went to go an install a different intake and found two pushrods bent.. did not even notice any...

I'm checking on prices on dougs header d450 for early abody dart .. anyone get a good deal on these headers ? searching the internet now for prices and locations ? amazon , jegs, summit ,dougs etc. thanks !

I have a 1965 273 dartcharger , engine All bone stock and a 4 speed , question is >>> engine runs real strong in first gear with a 2.93 gear , frys the tires thru first gear at a roll , but as soon as I grab second gear , it just seems to peter out ... could this be the issure with the...