How to tell if my 350 was originally a 4bbl?

Huron · June 1st, 2007, 06:28 AM

What's the best way of telling if my 350 in my 71 Cutlass was a 4bbl originally? The original carb, intake, aircleaner, tune-up tag, and markings on the oil fill tube are long gone. The casting numbers on the heads are "409147". The block casting number is "X555XX".

Where is the engine ID number on this engine?

Thanks!

Huron

telli_tell · June 15th, 2007, 10:42 AM

You can look it up just by your VIN. I can't remember the site where I looked mine up.. it's been so long ago.

joe_padavano · June 15th, 2007, 03:44 PM

Quote:

Originally Posted by telli_tell

You can look it up just by your VIN. I can't remember the site where I looked mine up.. it's been so long ago.

The only engine-related info you'll get from a 1971-earlier VIN is whether the car was originally a V8 or six.

texasred · July 9th, 2007, 12:46 PM

If it was a Cutlass Supreme, it was a 4-BBL for sure.

C.J.

88 coupe · July 10th, 2007, 02:23 AM

Hi C. J,

Welcome back.

Quote:

Originally Posted by texasred

If it was a Cutlass Supreme, it was a 4-BBL for sure.

Unless the original purchaser specified otherwise?

Norm

Huron · July 10th, 2007, 09:35 AM

It's a Cutlass "S". Contacted the previous owner, and he said that it was a 2bbl originally.

Huron

June 1st, 2007, 06:28 AM	#1 (permalink)
Huron Junior Member Join Date: Mar 2007 Posts: 19	How to tell if my 350 was originally a 4bbl? What's the best way of telling if my 350 in my 71 Cutlass was a 4bbl originally? The original carb, intake, aircleaner, tune-up tag, and markings on the oil fill tube are long gone. The casting numbers on the heads are "409147". The block casting number is "X555XX". Where is the engine ID number on this engine? Thanks! Huron

July 9th, 2007, 12:46 PM	#4 (permalink)
texasred Tom Servo's Stunt Double Join Date: Apr 2004 Location: San Antonio, Texas Posts: 824	If it was a Cutlass Supreme, it was a 4-BBL for sure. C.J. __________________ Dad said, "Sometimes you read Job...sometimes you ARE Job!"

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June 15th, 2007, 10:42 AM	#2 (permalink)
telli_tell Junior Member Join Date: Jun 2007 Posts: 12	You can look it up just by your VIN. I can't remember the site where I looked mine up.. it's been so long ago.

July 10th, 2007, 09:35 AM	#6 (permalink)
Huron Junior Member Join Date: Mar 2007 Posts: 19	It's a Cutlass "S". Contacted the previous owner, and he said that it was a 2bbl originally. Huron