Can anyone give me specific things to look for with a 69 BB car, supposed to be a 400 but the intake and carbs are gone, orig engine may be as well. Tach red line? and other things?
Thanks
Thanks
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Re: 1969 427-400 features
Gary------
There are, of course, well known chassis component part differences between small block and big block. These have probably been discussed a thousand times on this board. However, there are no chassis or other component differences between an L-36 big block and an L-68 big block. The tach redlines are the same (but, of course, different for L-71 or L-88). So, if the original engine is gone I don't know of a way to discern between an original L-36 or L-68. Of course, one might get lucky and find a build sheet on the gas tank or under the dash.In Appreciation of John Hinckley -
Re: 1969 427-400 features
Check the fuel lines if they are still original to the car. Believe the L68 had no return fuel line and the L36 did. This
was the case for my former 1968 which I believe was a carryover to the 1969. The only way to change these lines
was to lift the body off so it can be done but a lot of work to do this. JMHO>LarryLarry
LT1 in a 1LE -- One of 134Comment
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Re: 1969 427-400 features
Thanks Joe. I probably won't get to see this car for a couple of weeks. I didn't recall what the red line was for BB tachs.5600 comes to mind.Comment
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Re: 1969 427-400 features
Thanks Larry. I will take some pictures once I get to see it.Comment
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Re: 1969 427-400 features
You are correct. Tach red line is 5600 for both 390 and 400hp cars. BTW, this is listed on pg 33 of the 6th edition TIM&JG.'69 Blue/Blue L36 Vert w/ 4-Spd
'73 Blue/Blue L48 Coupe w/ 4-Spd
'96 Red/Black LT-4 Convertible
"Drive it like you stole it"Comment
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Re: 1969 427-400 features
Gary,
Page 33 of the '69 TIMJG confirms your recollection of 5600 RPM redline. (I was typing this as Floyd responded, too)
And as Joe said, it's the same for 390 cars, so no "proof" there.
Page 109 lists LQ (4-spd) and LN (auto) as the only two suffix codes for '69 400s..if the cylinder case is still in there!
good luck...thx,
MarkComment
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Re: 1969 427-400 features
Mark,
Also MJ and MK with TIComment
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Re: 1969 427-400 features
Gary,
Should you be so lucky, and the interior might still be original, and it is still there, the engine specification plate on the console will designate 427 cu in / 400 HP . Just a possible clue, also I would point out, that this engine plate could be easily replaced.
RayComment
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Re: 1969 427-400 features
I have only seen some pictures. The console plate is a 400hp plate and who knows if it's the original. The BB engine in the car now I don't believe is the original, certainly no tri power sitting on top of it. The body and interior have been changed from blue/blue to black/black
So while it might have once been a 400hp car it isn't now. The car has been worked and raced from what I was told and has been sitting for some years now.
Still, it is a 69, 4 speed, bb, with both tops. The body looks good from what I can see.Comment
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Re: 1969 427-400 features
I don't think there was much difference, if any, in power between the two iterations. The L68 merely offered a placebo by way of a flashy intake with 3 carburetors.Comment
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Re: 1969 427-400 features
Mark
I will still stand by that observation, even though I have gone to the dark side and purchased a Corvette originally equipped with three Holleys. They do look stunning on the top of the aluminum manifold and between the aluminum heads. It was really all that aluminum (and the transmission) that attracted me to that car. the Holleys were a negative. Like some other things in life, they look breath taking but the reality is a lot different.
And that is as far as I will go with that train of thought, lest I get kicked off of here.
TerryComment
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