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I have the 79 - 292 inline 6 and the headers will fit.
Now if they hit the motor mounts just go on E-Bay [chevy 292]
and theres a spacer you can get for it. Stock screws wont work with the spacer..
I just took a hammer and dented one tube ..That worked fine for me..
Also if you go to a 4 BBL you will half to bump up your cam..
4 BBL`s tend to pump to much gas in there and the motor gets slugis if the cam is stock.
I just went thru all that on my swampbuggy.
I have learned that a holley 4 BBL 390 CFM is the best carb for the inlines to run with just over stock cams. E-Bay has them too. [Holley 390 CFM ]
 

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I used the thick steel gaskets to mount the headers and intake..
The other ones allways leaked on me.
OH and have someone there to help you to put all that together becouse its a pain in the a**
Tryin to hold all that together and them put in the bolts.
I seen a trick the other day on painting headers...Heat them up with a tourch good and hot [ NOT red hot ] then paint them with high temp header paint from the auto store and let them cool ..Its the same as bakeing them like it says on the can..
 

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Yea its still a 292.
I think in 1981 0r 82 Mexico started makeing them and the us stoped.
As far as the cam goes well the best thing to do is go to a local automotive shop and talk to them on just what your looking for and wanting to do..
On E-bay [292 chevy] there is a book you can get on hopping up the 250-292 .
It will tell you everything about hopping one up...
If you want 300 horses out of your 292 it will tell you how get it...
If you just want to hop it up a little call comp cams give them your your model number of the 292 and what gears your running in the car or truck and what your tranni is and they will build you one..
I found that when you just buy one off a shelf you half to work out all the bugs sorta speak ..
It`s best to have one made for just what your trying to do..
If you just want to pull with it go to an RV cam
Thats what I have in my buggy....I can eather pull you out or pull your bumper off...
This cam is a bump up from a stock cam and is the
best to keeping your tourq at a low rpm. 500 to 1500..
Go to [ 292 chevi inline 6 ] on e-bay and you will see the spacers and the book your looking for..
 

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cam/manifold/headers and carb,I would bet 180 hp or slightly more if you are lucky.sounds like fun and something different. also consider a holley 500cfm 2bbl as a good match.
 

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I like Isky cams for in-lines. The E-462 is about right for towing, 1500-4800 rpm range. You need to call though, the grinds they have listed are for solid lifters. A note says to call for 71+ hydraulic grinds. Just tell them you want something similar to E-462 but for hydraulic lifters.
 

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chevy I6 292 help

There is a Nitro 292 in a pickup in Sturgis, SD that turns 9,000 RPM, developps over 600 HP and runs good. racing only but that speaks well for that block. I have one that develops 2.6 HP per cubic inch (306 c.i.) and is a street machine.
Normbc9
 

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The thing is that an individual barrel for each cylinder makes for wicked throttle response. On an I-6 it also means equal mixture in all cylinders. A fellow AMC guy put three 2V side draft Webers on his 232 six and was VERY impressed with it. The only other thing you can do that comes close is port injection with an injector at each cylinder. That solves the mixture problem, but still doesn't have the throttle response of individual barrels on short runners. You wouldn't think that motorcycle carbs would be big enough, but they are (think 6 carbs from a four cylinder 1000 cc or larger bike). The bike engine turns a whole heck of a lot more rpm than a car engine, so needs to flow a lot more cfm.
 
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