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Thanks Chief, I'm not positive about the 167's, but with the open chamber 675 heads I probably wont hit over 8.5. I'm trying to get by with minimal machining to cut cost. The KB 399's might do it, but I'm not sure of chamber volume on the heads to determine approximate CR.

I have a '73 318 laying around that I want to build on the cheap for my kid's Duster. I want to run a Hughes Whiplash cam in it to give him that sound we all love. I will be using the stock 675 heads, Edelbrock Performer, Carter Comp AFB 625, Heddman headers, 904 w/ Trans Go kit and 3.21's...

Well the kid finally did it, he lost it and smacked the curb so hard he folded the front left wheel. While I'll be in possession of the Moose Mobile (74 Duster w/ 273 Commando) for a while fixing it, I thought of doing up a spare 1973 318 I have laying around. The 1965 273 Commando that's in the...

3forty's right. The "OLD" DC Hemi grind from the 70's was speced out like he said. It got superseded with the one MP has which is a straight 280/.480 configuration.

Timing is set at 12 deg. static and totals around 36 deg. mechanical. Add about 12 more deg. for vacuum advance. I fished around for a short slot advance cam for the distributor specifically to run a lot of initial timing for low end. The kickdown is set for WOT and it opens all the way, however...

I like the gear idea. What about 302 heads? I've been reading the site since I posted the thread. I really don't feel like building another engine. If a head swap and gears will wake up this thing, that suits me fine. Oh, the cam specs are 270 deg. advertised, 224 @ .050 and .468 lift in and...

I have a FREE 318, and the Schumacher mounts I have are 273/318 only. the 340/360 one's are different. Trying to go cheap. Maybe advice on more power in the 273 would be better, since it's only got about 3000 on the rebuild.

The heads are original 64-65 castings, same as the block. The compression in the 273 is 10:1, putting out about 160 psi. I know that due to the tiny bore of the 273, that heads are a very limited choice due to clearance issues. Any other ideas perhaps?

Hey guys, it's advice time for me and my son, Moose. That 273 we did early this year is a slug. He wants more GO. so we're thinking of up sizing to a mid 70's 318 my buddy will give us. The 273 has a new Comp Cams 270 Magnum solid lifter cam, Eddy Performer 318, Hedman headers,in a 74 Duster...

I just went through a 273 for my kid's 74 Duster and I picked the Comp Cams 270S Magnum, P/N 20-264-4. The specs on this one is 270 advertised ( 224 @ .050 ) and .468 lift. It's a single pattern profile. We just got the car fired and I'm still working all the bugs out of this Slant Six swap, but...

Yes Steve, you are right on. When the dots face each other, my engine is at #6 TDC. Is that normal? I always assumed that dot to dot meant #1 TDC. Well this why one asks and learns I suppose. Thanks.

Am I a dumbass or don't I get it? Ok, here's the deal. I set my 273 at TDC and insert the new bump stick ( on engine stand ), I go to install the timing chain with the timing marks set to "dot to dot" per instructions and the cam is 180 degrees out of time according to the Mopar valve lash...

Ok guys, I scrubbed the motor and tore off the heads. I'm not sure what factory domed pistons actually look like but these pistons are definitely aftermarket slugs. They're flat top with 4 valve notches in 'em and stamped 060 on the piston face. Any ideas? I may as well pull the cam and have it...

If I used timing tape and set the 90 degree mark at the zero line on the balancer, that should work too, I think.

Thank you, Tony. I really appreciate it. Ted

Ok, dumb question but I need to know. The 273 I have is missing the timing tab, so I considered replacing the timing cover to a post '69 type since I'm running the newer type water pump anyway. Will the existing balancer work as far as the timing mark lining up with the newer cover, or is the...

Wow, lot's of good info and advice here. This answers alot of questions I had requested in my post. For Mooser, I think freshening up the 273 would be the most cost effective and prudent thing to do for now. Hey, at least he'll have a V8 instead of a Slant Six. Before I get bombarded by all you...

I don't know the gear ratio yet. I tried doing the spin test on this peg leg, but still I couldn't get an accurate reading. I'm planning on 3.55's for the Moose Mobile. As far as the heads go, my buddy has a Performer he'll give me and machine the bolt holes to the early 273 configuration, and I...

Thanks for all the input guys! It does have the '65 273 heads on it and the block is dated Dec. 65. I know that Edelbrock is a low rpm intake, it's runners are real small. If I remember right, the SP-2P was a 70's 318 upgrade for mild street use and to gain 4 bbl power over stock 2 bbl and the...

Hi guys, I'm new to the site. I'm mooser's bank (dad) trying to help him build up his '74 slant six Duster into something more fun, so here's where we're at. I got him a running '72 Swinger donor car (bad body) that was going to be some kid's racecar project that failed. I think we did ok for...