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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


finally runs good

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G3GM :: G3 Tech :: Engine & Driveline

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finally runs good Empty finally runs good

Post by pila Mon Dec 05, 2016 12:48 pm

Had my share of fooling with the engine ( 507 inch Caddy) in my '75 Elco.  The Q-Jet carb was part of the problem, and with some mods & some new parts in it, it runs good.  But then it was acting up again, and ended up being an intermittent problem with the  coil in the HEI distributor.  It would just quit working when it felt like it !  After that was resolved, it's been running good. Engine has ported heads, bigger valves, and a "fairly" mild cam....
Intake manifold is a ported stock type, which is what will still fit under the hood.  No headers, even the stock exhaust manifolds are very tight with the front suspension, upper control arm shafts etc.
It makes tire smoke a bit too easy !  Rear end is a Currie 9-inch Ford, along with a TH400 that I built for it, and I went through a lot of work to build a 2 1/2 inch stainless exhaust system for it, with Borla Mufflers.  Maybe I'll get some enjoyment out of it, finally ! Very Happy

finally runs good P1011025_zps8ij7oehu


Last edited by pila on Tue Dec 06, 2016 11:28 pm; edited 1 time in total

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Post by Joe73 Mon Dec 05, 2016 1:22 pm

Nice job. What gears are you running out back?
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Post by pila Tue Dec 06, 2016 12:06 am

I'm running a 2.50 ratio. This thing gets it's power & torque at lower RPM it seems....

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Post by thatfnthing Tue Dec 06, 2016 10:06 am

Nice work Bill!

Once you get it all together, working out the last kinks seems like a bigger job that the work itself, 'cuz you just want to be enjoying it.
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Post by Hs1973 Tue Dec 06, 2016 3:26 pm

Sounds like a brutal tourqe monster. I wish i could see it in Real life, and hear it too. I Think you must be pretty alone with a caddy engine in a elco. Nice
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Post by pila Tue Dec 06, 2016 11:23 pm

Thanks for the good words !  I'm still playing with the ignition timing a bit. I bought one of those advance type timing lights. Not sure how good they are. !!

The exhaust note is nothing like a Chevy, and this cam doesn't make a have a lope to it like my Malibu. Almost sounds stock, but a bit loud ! Rolling Eyes

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Post by Hs1973 Wed Dec 07, 2016 2:05 pm

It is still a Nice project that has a WOW factor you wont get with a chevy motor. I like it
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Post by fasrnur Wed Dec 07, 2016 10:20 pm

What a grunt monster you have there sir. If it would move a car that probably weighed close to 6000lbs, it should make yours run very nicely.
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Post by pila Wed Dec 07, 2016 10:57 pm

Yes, my old '76 Caddy weighed, according to the title, 5300 lbs. Still a heavy barge ! I may weigh my Elco, just to see many lbs I added !

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Post by thatfnthing Thu Dec 08, 2016 9:44 am

Just put "new set of rear tires" on your birthday wish list every year. Problem solved. Smile
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Post by pila Thu Dec 08, 2016 9:05 pm

Yes, you may be right !! This has been a long project, like 7 1/2 years ! Body off etc.. I'm not too crazy with it, but...why have some muscle if I don't use it ! Very Happy

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Post by knightfan26917 Sun Dec 11, 2016 5:53 pm

pila wrote: Maybe I'll get some enjoyment out of it, finally ! Very Happy

Sure hope you do after all that!!! lol


Cort, www.oldcarsstronghearts.com
pig&cowValves.paceMaker * 1979 CC to 2003 MGM + 81mc
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