LS6 1970 Chevelle info needed ?

[hemi24]

build sheet.

[maxwellwedge]

Looks like an LS5 - Maybe not

I don't see LS6 or conversion printed anywhere.

Scratch All that.....

It does say Z15 SS 454 PKG

It usually says:  Z15 SS 454 CONVER

[hemi24]

build sheet it's kind of hidden buy the light on the page but it says LS6 - 454 it's in the middle of the picture..

[hemi24]

build sheet it's kind of hidden buy the light on the page but it says *LS6 - 454 it's in the middle of the picture..

[maxwellwedge]

Yes - I can see it .....At first it looked like something else. Sorry about that! 

[BlueSS454]

These particular Chevelles are faked so often it's ridiculous.  There are people out there faking buildsheets that look good to the untrained eye as well.  There is a lot more that identifies an LS6 car than meets the eye.  1 key is the build date.  The earliest known LS6, the "pilot car" has a November 1969 build date in preparation for RPO L78 being replaced by RPO LS6 on January 1, 1970 when the ban on 400+ CID engines not being available in mid sized cars.  Each component on the LS6 engine (alternator, carb, distributor, fan, pulleys, etc) are unique to that car.  The LS6 cars also have specific pinion yokes on the rear axle.  It's gotten to the point where people are restamping alternators and distributors in an effort to fake one.  A fake distributor is easy to spot as they only have 4 possible dates on them....IF you know what they are.  All LS6 cars were AIR equipped as well, no exceptions.
The VIN and Fisher Body Plate ONLY tell you if it's a 6 cylinder or V8 car.  There is an anomaly with cars built at the Kansas City Leeds plant as far as the Fisher body plate is concerned.  It's an observation taken from cars with documents that SS equipped cars from that plant be it a 396 or 454 car, have the letter "L" stamped into the plate.  Documented non SS cars have been found not to have it.  It's nothing concrete, just an observation made.
The VIN is stamped on 2 places on the firewall of all 1970 Chevelles except those built at the Arlington, TX plant.  Both behind the heater box on the engine side.  1 is under the heater core, the other under the blower motor opening.  Not all of them have the VIN stamped on the frame.  I know Atlanta built cars do, I've never noticed it on the other 70's that I've had from other plants.  The VIN is stamped on the engine near the oil filter OR the pad in front of the right cylinder head....fakes are EASY to spot on that.  The VIN is also stamped on the transmission be it a TH400 or M22 which were the ONLY transmissions available on 454 cars.

remember the ls6 was just an option that you could get on a malibu, el camino, monte carlo and chevelle. the 136 prefix in the vin and the 138 prefix in the vin helps to i.d. the car. i believe 136 was for a malibu and 138 for chevelle. bow tie did a bad thing in 70 with it's car i.d. they are the easiest to fake . the P.O.P helps in telling you what the car really is. you can take a 350 chevelle and make it to a SS LS6. the bad thing is the P.O.P was kind of like the build sheet for mopar, easy to lose.  mopar vin will tell you most of the important info, not so much with the bowtie vin. good luck, buyer beware. my friend bought a really nice LS6 SS chevelle turned out to be a mailbu.

This is incorrect, I will explain.  Chevelle is the BASE series line of the car (13000).  The Malibu is a trim level package, nothing more.  RPO Z15 was ONLY available on V8 Malibu Sport Coupes and convertibles (13637 & 13667), Monte Carlos (13857), Custom El Camino (13680).  The base model Chevelle (13400 series) could NOT have this RPO checked off.
So, ALL SS cars in 1970 ARE based on the Malibu trim level therefore ALL SS equipped Chevelles with have the 13637 (coupe) or 13667 (convertible) VIN.  Any car with a 13500 VIN started life as a 6 cylinder car and CAN NOT be an SS car.
People commonly mistake the "138" VIN deal thinking it applies to all Chevelles, not true.  That ended in the 1969 model year when SS equipment became optional as opposed to a separate Model from 1964-1968.  If you have a 138 VIN car in 1970, you have a Monte Carlo or Station Wagon.

[1969chargerrtse]

These particular Chevelles are faked so often it's ridiculous.  There are people out there faking buildsheets that look good to the untrained eye as well.  There is a lot more that identifies an LS6 car than meets the eye.  1 key is the build date.  The earliest known LS6, the "pilot car" has a November 1969 build date in preparation for RPO L78 being replaced by RPO LS6 on January 1, 1970 when the ban on 400+ CID engines not being available in mid sized cars.  Each component on the LS6 engine (alternator, carb, distributor, fan, pulleys, etc) are unique to that car.  The LS6 cars also have specific pinion yokes on the rear axle.  It's gotten to the point where people are restamping alternators and distributors in an effort to fake one.  A fake distributor is easy to spot as they only have 4 possible dates on them....IF you know what they are.  All LS6 cars were AIR equipped as well, no exceptions.
The VIN and Fisher Body Plate ONLY tell you if it's a 6 cylinder or V8 car.  There is an anomaly with cars built at the Kansas City Leeds plant as far as the Fisher body plate is concerned.  It's an observation taken from cars with documents that SS equipped cars from that plant be it a 396 or 454 car, have the letter "L" stamped into the plate.  Documented non SS cars have been found not to have it.  It's nothing concrete, just an observation made.
The VIN is stamped on 2 places on the firewall of all 1970 Chevelles except those built at the Arlington, TX plant.  Both behind the heater box on the engine side.  1 is under the heater core, the other under the blower motor opening.  Not all of them have the VIN stamped on the frame.  I know Atlanta built cars do, I've never noticed it on the other 70's that I've had from other plants.  The VIN is stamped on the engine near the oil filter OR the pad in front of the right cylinder head....fakes are EASY to spot on that.  The VIN is also stamped on the transmission be it a TH400 or M22 which were the ONLY transmissions available on 454 cars.

remember the ls6 was just an option that you could get on a malibu, el camino, monte carlo and chevelle. the 136 prefix in the vin and the 138 prefix in the vin helps to i.d. the car. i believe 136 was for a malibu and 138 for chevelle. bow tie did a bad thing in 70 with it's car i.d. they are the easiest to fake . the P.O.P helps in telling you what the car really is. you can take a 350 chevelle and make it to a SS LS6. the bad thing is the P.O.P was kind of like the build sheet for mopar, easy to lose.  mopar vin will tell you most of the important info, not so much with the bowtie vin. good luck, buyer beware. my friend bought a really nice LS6 SS chevelle turned out to be a mailbu.

This is incorrect, I will explain.  Chevelle is the BASE series line of the car (13000).  The Malibu is a trim level package, nothing more.  RPO Z15 was ONLY available on V8 Malibu Sport Coupes and convertibles (13637 & 13667), Monte Carlos (13857), Custom El Camino (13680).  The base model Chevelle (13400 series) could NOT have this RPO checked off.
So, ALL SS cars in 1970 ARE based on the Malibu trim level therefore ALL SS equipped Chevelles with have the 13637 (coupe) or 13667 (convertible) VIN.  Any car with a 13500 VIN started life as a 6 cylinder car and CAN NOT be an SS car.
People commonly mistake the "138" VIN deal thinking it applies to all Chevelles, not true.  That ended in the 1969 model year when SS equipment became optional as opposed to a separate Model from 1964-1968.  If you have a 138 VIN car in 1970, you have a Monte Carlo or Station Wagon.

Man you know your stuff.  I used to be like that with 69 Camaros.  Had them all, 375/hp Pace cars, RS Z/28, RS/SS conv etc.  Now I remember a few facts and own a Charger.

[A383Wing]

yea...I had that info also on the Firebirds....we had a 68 'Bird....

that was explained very well BlueSS.....

could not have said it better myself....which is why I asked about the build tag under the hood...should it not tell someone if it's a real base model for the SS cars?

Bryan

[BlueSS454]

The fisher body plate will have the model designation on it via the top line.  It will begin as this....ST70 13637 or ST70 13667  .

[A383Wing]

yea..that's the tag I was trying to describe...the "Body Plate"

[hemi24]

ours is  136370K