Considering a '69 with a 496. - Team Camaro Tech
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post #1 of 23 (permalink) Old Aug 4th, 14, 10:07 PM Thread Starter
 
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Considering a '69 with a 496.

This will be my first car of this type (classic, muscle).

Its my understanding that this is a massive engine.

Since this will be my first car of this type, is it better to avoid something with an engine of this size?

I plan on doing a lot of highway driving and would think that this thing will suck gas (gallons per mile vs miles per gallon).

I'm being told that the engine is accompanied by a rebuilt turbo 400, 3500 stall converter and an 850 holley.

Not sure if this is a good set-up or what else I need to know...

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post #2 of 23 (permalink) Old Aug 4th, 14, 11:00 PM
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Re: Considering a '69 with a 496.

496 = gallons per mile. Unfortunately, even the old small blocks are not going to get you respectful miles per gallon.

If you truly want to get a car you can really drive today, you should look at one with an updated drive train i.e.: LS Motor, T56 Six Speed Trans and 3.73 rear gears will get you at least 22+ MPG. Of course don't forget the need to handle fast stops on todays highways and make sure you have Disc Brakes up front, preferably in the rear as well.

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post #3 of 23 (permalink) Old Aug 5th, 14, 03:47 AM
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Re: Considering a '69 with a 496.

[QUOTE=springwater;2585242]This will be my first car of this type (classic, muscle).

Its my understanding that this is a massive engine.

Since this will be my first car of this type, is it better to avoid something with an engine of this size?

I plan on doing a lot of highway driving and would think that this thing will suck gas (gallons per mile vs miles per gallon).

I'm being told that the engine is accompanied by a rebuilt turbo 400, 3500 stall converter and an 850 holley.

Not sure if this is a good set-up or what else I need to know...

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post #4 of 23 (permalink) Old Aug 5th, 14, 05:28 AM
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Re: Considering a '69 with a 496.

It's not about the miles per gallon, it's about the smiles per gallon. If you are going to do a lot of highway driving, might want to look for something set up a little different, though. It's going to use quite a bit of fuel. On the other hand, if this is just going to be an occassional cruiser, go for it. A 496 is a pretty common engine anymore. There are guys running larger ones.

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post #5 of 23 (permalink) Old Aug 6th, 14, 01:24 AM Thread Starter
 
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Re: Considering a '69 with a 496.

Ok so lets say I go forward with this purchase.

What kind of gas mileage can I expect?

Hows the rest of the setup: rebuilt turbo 400, 3500 stall converter and an 850 holley.

Apparently its a newer "Jeggs" engine with a warranty so I got that goin for me, I guess.
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post #6 of 23 (permalink) Old Aug 6th, 14, 03:46 AM
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Re: Considering a '69 with a 496.

I'm thinking 10 or less....

Rear gears ?

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post #7 of 23 (permalink) Old Aug 6th, 14, 05:45 AM
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Re: Considering a '69 with a 496.

looks like your more interested in gas mileage , Don't go for a performance big block.

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post #8 of 23 (permalink) Old Aug 6th, 14, 06:17 AM
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Re: Considering a '69 with a 496.

A big, inefficient crate motor would be the last thing I'd look for. I order to justify 496 CID I'd expect no less than 750hp. really closer to 850. I'm betting this pig makes 650 max. Boat anchor. Not only is the MPG going to be awful (single digits), with the 3sp auto you'll likely be @ 3000rpm+ trying to keep up with traffic on the free way. No fun.

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post #9 of 23 (permalink) Old Aug 6th, 14, 06:58 AM
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Re: Considering a '69 with a 496.

I'd agree with the above statement....if you are concerned about gas milage, then don't buy it! I've just got a 350 in my 69 and 4.11 gears and at highway speeds, I'm running at 3500/3700 rpm and I have a 750 Holley on it. It is GUZZLING the gas at those rpms! I don't really care though since it isn't a daily driver. If it's going to be just a fun weekend cruiser and you don't care about gas milage, go for it, but if you are really worried about good mpg, then I'd look at something else.....the LS engines get good milage and have good Hp too. I personally wouldn't hesitate to put a 496 in my car if I had the chance!! Would be awesome!!! Just keep the tanker truck behind me so I can fill up when I need to!!! haha!!!
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post #10 of 23 (permalink) Old Aug 6th, 14, 07:30 AM
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Re: Considering a '69 with a 496.

Classic, muscle, and MPG are words/phrases not to be used in the same sentence.
Regardless of Classic muscle brand - especially highway driving.

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post #11 of 23 (permalink) Old Aug 6th, 14, 07:41 AM
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Re: Considering a '69 with a 496.

Quote:
Originally Posted by wendell View Post
A big, inefficient crate motor would be the last thing I'd look for. I order to justify 496 CID I'd expect no less than 750hp. really closer to 850. I'm betting this pig makes 650 max. Boat anchor. Not only is the MPG going to be awful (single digits), with the 3sp auto you'll likely be @ 3000rpm+ trying to keep up with traffic on the free way. No fun.
A 500 hp Big Block in a 1st Gen is far from being a boat anchor. They have tons of torque.

750-850 motor are not very street able and very expensive

The down side with the TH400 and 3500 stall you'll be 7-8 mile per gal if you don't get on it.

For power and mileage LS is the way to go. However you can get power and reasonable mileage with a SBC too. The most important key to this is using an OD tranny. The 2nd thing is to convert to EFI.

My 355 Roller motor with a TKO 500 and 355 gear was getting 18 mpg and easily running along at 70-75 mph. About 420 hp with a Holley DP. Converting to EFI would have put it over 20 mpg.

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post #12 of 23 (permalink) Old Aug 6th, 14, 07:47 AM
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Re: Considering a '69 with a 496.

I see two 496 ci. from Blue Print Engines sold by Jegs. One is a 480 hp engine and the other is a 575 hp engine. If you want a Camaro with good gas mileage you would want one with the LS engines. The Camaro with the 496 crate engine is not setup for any kind of gas mileage in mind. It would need an overdrive transmission and 373-4.10 rear gear ratio to help get decent gas mileage.
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post #13 of 23 (permalink) Old Aug 6th, 14, 08:37 AM
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Re: Considering a '69 with a 496.

Quote:
Originally Posted by springwater View Post
This will be my first car of this type (classic, muscle).

Its my understanding that this is a massive engine.

Since this will be my first car of this type, is it better to avoid something with an engine of this size?

I plan on doing a lot of highway driving and would think that this thing will suck gas (gallons per mile vs miles per gallon).

I'm being told that the engine is accompanied by a rebuilt turbo 400, 3500 stall converter and an 850 holley.

Not sure if this is a good set-up or what else I need to know...

The bold line above says it all... I have belonged to a Camaro club for almost 15 years. We get out and drive our cars for a lot of events and puts lots of miles on them, many times a year 200 miles or more in a single outing. We have some big block owners in the club but you don't see them too often at driving events that will be over 50 - 75 miles.

All that said, the key to getting some gas mileage out of an old car like a Camaro is rearend gears, overdrive transmissions, the right engine combination and keeping your foot out of it. Modern fuel injected, computer controlled transplants will give you all the power you want and some decent fuel economy but a car so equipped really starts loosing it's retro appeal. A typical small block with a carb can also get you decent numbers but may not give you the same ponies as an LS conversion.

My buddies almost stock 307 with a TH350 and high rear gears will go almost as far on a tank of gas as my 400hp carb equipped 383ci small block with overdrive and 3.42:1 rear gears. I can pull down 20-23 mpg depending on if I drive a steady 60mph or 75mph and don't stick my foot into it at all.

The car you're describing would be a blast going between your garage and the local cruise-in or an occasional back road jaunt. The high stall converter is taking away the cars stoplight manners and the cubic inches and 850 carb mean that thing will drink like a sailor on one night shore leave!

...Dennis

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post #14 of 23 (permalink) Old Aug 6th, 14, 09:29 AM
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Re: Considering a '69 with a 496.

Quote:
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keeping your foot out of it.
Never happen
Quote:
that thing will drink like a sailor on one night shore leave!
Hey, I resemble this...

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post #15 of 23 (permalink) Old Aug 6th, 14, 11:09 AM
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Re: Considering a '69 with a 496.

Look at it like this (my combo see sig):

454 + TH400 w/3500 stall + 4.10 geared 12 bolt = 6 mpg city / 8 mpg high way (55 mph = 3500 rpm)...

That makes for roughly 100 miles between fill ups. If that's a major concern then look for something else with a more complaint drive train.

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