What is the order of the push rod on a3.1 gm i have (exhaust intake) (intake exhaust) (intake exhaust) for one head and the other is (exhaust intake) (exhaust intake) (intake exhaust) is this right?

Short push rods are for intake, long push rods are for exhaust

Exhaust push rods are longer

• 6.0740 Inch Overall Length
• Standard Size
• Intake valves are
• 5.7460 Inch Overall Length
• Standard Size. Front head.

front head standing in front of car passenger to driver side
Ex , in ,in Ex ,in Ex

rear head standing in front of car passenger to driver side
Ex. ,In , Ex , In , In , Ex

remember exhaust push rods are longer
Rocker arm bolt ................................ 124 lb. in.plus 30 degrees

Lay your pushrods in a row exactly like you removed them and work backwards to install them if you want each pushrod to set with its original lifter.

look at the ports on the exhaust manifold and compare them to the ports on the cylinder head, some times one manifold port will service two valves.

You are thinking too hard.

It is VERY simple. The Intake valve push rods (marked with ORANGE paint) are shorter than the exhaust valve push rods (marked with BLUE paint) If you cannot see the paint, you can always stand them up next to each other...it is pretty obvious which ones are which.

BOTH heads are EXACTLY the same - they are interchangeable. It is just that one is turned one way and the other is turned the other way so the exhaust and intake ports will be on the correct sides. (intake port towards the center of engine, exhaust port to the outboard sides of the engine.) You do not need to go searching the internet for some "order". All you have to do is LOOK AT THE HEAD to tell which valve is intake and which valve is exhaust.

So then it is as simple as: Put the short push rods on the intake and the long push rods on the exhaust....

Push rod,you have two different size,or firing order is wrong. The intake push rod are 5 3/4 inch long, the exhaust are 6 inches long,Disable the spark and crank the engine the sound should be smooth and even,if its not correct the push rods.If it is correct the firing order

WHEN ORDER PUSH RODS YOUR INTAKE PUSH RODS LENGH 5 3/4 INCHES , THE EXHAUST PUSH RODS LENGTH 6 INCHES. YOU NEED 8 INTAKE PUSH RODS YOU NEED 8 EXHAUST PUSH RODS. YOU CAN GO TO DEALERSHIP BUY OR AUTO PARTS STORES HAVE THEM.

The valves that are furthest from the intake, on the outside perimeter of the head, closest to the spark plugs are small diameter valves. These valves use the short rods. The valves that are [non-uniformly] on the interior of the head use the large diameter valves. These valves use the long push rods. This is not due to the diameter, but do to the proximity of the valve on the head with respect to the rod length required to push it. So, looking at a picture of the "front head," closest to the front of the car, from underneath will verify that diameters are small - large - large - small - large - small. Inspecting from above you should note the order of valves as outside - interior - interior - outside - interior - outside. And if you invert that same head to the "rear head" configuration (180o) it would become small - large - small - large - large - small (outside - interior - outside - interior - interior - outside).



The answer is this:
The rear head (2-4-6) will have push-rods in the following configuration:
short - long - short - long - long - short

The front head (1-3-5) will have push-rods in the following configuration:
short - long - long - short - long - short

try looking for the configuration of the intake to head ports and if youcan see in the heads the holes going to the exhaust ports should be were the exhaust push rods go.

Important: Place the valve train parts in a rack in order to ensure that they are installed in the same location from which they were removed. Intake pushrods measure 144.18 mm (5.68 in) long. Exhaust pushrods measure 152.51 mm (6.0 in) long