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| Rebuilding a 73 six - looking for advice https://www.slantsix.org/forum/viewtopic.php?t=33923 |
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| Author: | 67A100225sixauto [ Sun Feb 22, 2009 3:20 pm ] |
| Post subject: | Rebuilding a 73 six - looking for advice |
I have a 73 six single barrel carb that I want to rebuilt to install in my A100 panel van which has a 727 auto trans. The current engine is tired (and not original), but does have the super six two barrel carb that I will switch over. In the way of cams, pistons and other components, what brands, product etc. should I be purchasing for the the rebuild of this engine. The 73 motor came from a 73 Duster which was turned into a drag car. Some increase in power is what I'm looking for, but this will be a daily driver during the summer months used for some light delivery work and going to car shows throughout the summer season. Thus I am looking for reliability and drive-ability. I am about to begin this project to get it ready for the spring. Suggestions, comments and recommendations are appreciated. Thank you. |
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| Author: | jason white [ Sun Feb 22, 2009 4:59 pm ] |
| Post subject: | |
I would go to a reputable machine shop and see what they say but in my opinion for pistons I would go with trw ,crane or isky for your cam and felpro for gaskets |
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| Author: | DusterIdiot [ Sun Feb 22, 2009 5:47 pm ] |
| Post subject: | Couple rough guidelines... |
Just a couple things to keep in mind: 1) make sure the crankshaft pockets are compatible, if your old engine is a '67 and the new one is a '68+ than you'll have to worry about the fitment of the flywheel or flexplate, coverter nose... 2) since you have a large 'brick' you are wanting to daily drive, I would look toward building on the 'torque' buildup which is roughly: 9.0:1 compression, a mild 'torque cam' (MP '243', Comp Cam 252, Erson RV cam, local custom regrinder...), after the build you will want to workon dialing in your timing curve as it will not be right for the new engine. I would check on pricing for engine rebuild kits, and shop for a reputable machine shop. Price on the rebuild will depending on many factors, but who does the engine assembly is one of the big $$$ items. good luck, -D.Idiot |
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| Author: | SlantSixDan [ Sun Feb 22, 2009 6:03 pm ] |
| Post subject: | |
No need to settle for an off-the-shelf "you'll take what they decide you want" camshaft — instead, take advantage of the tremendous amount of development and coöperation we've had from the Erson camshaft people; see here. A set of Dutra Duals would go very well, with a "Y" into single pipe and Walker #50051 muffler. Get and/or put together a thoughtfully-recurved distributor to go with an HEI upgrade. Gaskets: some of Fel-Pro's stuff is still okeh, though it is very much worth your while to get the good gaskets for the manifolds-to-head and intake-to-exhaust junctions. If you're wanting oversize valves, get them from Engnbldr. Pick out a nice new Rollmaster timing chain/sprocket set and vibration damper (pretty sure the linked vendor can supply the new timing set; ask 'em). The fuel line mod and standard Tune-up parts and technique suggestions in this thread work well to improve driveability, too. I'm sure others will have more suggestions. |
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| Author: | SlantSixDan [ Sun Feb 22, 2009 6:06 pm ] |
| Post subject: | Re: Couple rough guidelines... |
Quote: make sure the crankshaft pockets are compatible, if your old engine is a '67 and the new one is a '68+ than you'll have to worry about the fitment of the flywheel or flexplate, coverter nose...
Definitely worth keeping in mind, but he's going the easy direction (later engine behind earlier transmission). All that's needed is the 1/8" annular adaptor ring from Pat "Torqueflite Patty" Blais, tflitepatty@verizon.net . It's the other way around (earlier engine with later trans) that makes hassles.
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| Author: | Charrlie_S [ Mon Feb 23, 2009 5:28 am ] |
| Post subject: | |
Quote: Pick out a nice new Rollmaster timing chain/sprocket set and vibration damper (pretty sure the linked vendor can supply the new timing set; ask 'em).
For his type of build, I don't see the need for a high dollar timing set, or damper. A stock timing set will suffice, or a roller set from Hughes performance. As for a damper kiwijohn on e-bay. http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 0134032495
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| Author: | 65 dartman [ Mon Feb 23, 2009 6:05 am ] |
| Post subject: | |
That damper listed on eBay is for a cast crank engine; he mentioned he's rebuilding a 73 slant, which should be a forged unit. |
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| Author: | Charrlie_S [ Mon Feb 23, 2009 11:59 am ] |
| Post subject: | |
Quote: That damper listed on eBay is for a cast crank engine; he mentioned he's rebuilding a 73 slant, which should be a forged unit.
They are compatable. I have one on my 66 Valiant, with a forged crank.
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