Where are the casting numbers on a GM style 235?

The Head Casting number is located outside of the Valve Cover in plain site on the Drivers Side. If you have ever heard that the new style 235 gets better compression numbers with an “848”. Head, look for the last three numbers of that Casting Number.

What are the casting numbers for a 1955 GM car?

Head Casting Numbers Explained 1 1954-1955 235 Engine 3835913 2 1956-1962 235 Engine 3836848 3 1956-1962 261 Engine 3836850 4 more as I encounter them

Where are the serial numbers on a GM casting deck?

The center two digits are the day of the month. The final digit is the year the engine was made WITHIN the years that you narrowed it down to when you deciphered the Casting Numbers to the right. The next set of numbers you will find helpful are on the flat part of the Distributor Deck. This machined flat area has serial numbers stamped into it.

Where are the casting numbers on a Chevy 10 bolt?

The casting numbers for 10-bolt rear differentials are typically located either on the forward side of the passenger-side axle tube or on the driver’s side. These numbers are approximately 3 inches from the center section. The two examples at right show you how to decode 10-bolt housings. 1970 axle code: COZ 01 01 G E

How tall are the casting numbers on a GM car?

Clean the area thoroughly and use a nice bright flashlight. This is usually a 7 digit number and each letter/number is about 1/2″ tall. A little engine degreaser and a wire brush often makes this job easier. The next numbers we need are the ones just below the Starter on the passenger side.

What kind of bolt in housing does Mark Williams use?

This DTS housing from Mark Williams is a bolt-in replacement for a first generation Camaro or ’68-’74 Nova. By the way, they also offer housings for Chevelles, second generation Camaros, ’75 and new Novas, late model GM “G” and “A” bodies (for example, late model RWD Monte Carlos and Malibus), and torque-arm Camaros (’82 and newer).

Where are the casting numbers on a GM Truck?

The matrix on the right is the Engine Casting Numbers and should prove to get you the ID, Make and Year of your Engine. Before we get into further explanations of Casting Numbers, if you are trying to decipher the VIN plate on the Trucks Drivers Side Door Jamb, you can get that information on our History Page Here .

What are the casting numbers for a Chevy small block?

Here is a list of casting numbers, along with their original applications. Generation I Small-Block. 10036033 Small Block V8 350, 4-bolt, Goodwrench crate engine, 2-piece rear seal. 10051182 Small Block V8 2 bolt, Bow Tie block, 3.75-4.30 bore, 1-piece rear seal.

What makes a GM 12 bolt rearend different?

GM car and truck 12-bolt rearends are easily distinguishable by the cover shape. Most GM trucks from 1961 through 1972 used a rear suspension consisting of two trailing-arms with coil springs. There is an anomaly in that statement though, as leaf springs were an available option.

What kind of designator does a GM transmission use?

Most early electronic transmissions use the “-E” designator to differentiate them from their non-electronic cousins, but this has been dropped on transmissions with no mechanical version like the new GM 6L80 transmission .

What are the case numbers for a GMC manual transmission?

Case casting is number 13-53. All aluminum top-loaded transmission with shifter on top of the extension housing with internal single-rail shift linkage. Front and rear main bearings are tapered. The cluster gear is solid and is supported on each end by cylindrical roller bearings located in the case. Case castings numbers are 13-51 or 13-52.

Where are the casting numbers on a GM style 235?