When did Chevy stop making the 348 engine block?
When did Chevy stop making the 348 engine block?
As with block casting numbers (or any casting numbers for that matter), the information on just how many blocks were made by Chevrolet is incomplete. We do know, however, that production of the 348 was not shut down when the 409 began. Chevrolet continued making the 348 to use in trucks, going into 1965.
What kind of valvetrain does Chevy 348-409 have?
The stock W engine’s valvetrain strong and reliable enough to open and close the valves on stock engine up to 6,000 rpm, but the mechanical cam and valvesprings have a tendency to float at 6,000 rpm or more.
Can a 348 block be bolted to a 409 block?
Therefore, you should not bolt together mismatched heads and blocks because it could lead to out- right engine failure. The 409 heads’ valves may impact the smaller bore on a 348 block. The bores differ enough between the two W engines, so the heads and the block should be of the same displacement.
What was the intake and exhaust lift on a 1961 Chevy 409?
To precisely control the valve events at higher engine speeds, all the other 409 high-performance engines carried a solid lifter camshaft. For 1961, the 409’s cam intake and exhaust lift increased to .440 inch. At 45 degrees before top dead center, the intake opens and it shuts at 92 degrees after bottom dead center.
Where can I get an oil pan for a 348 Chevy?
And speaking of oil pans, there are a number of 348/409 oil pans available. Those looking to match the factory can get a reproduction 409 oil pan at Show Cars. Racing oil pans for W motors can be found at Stef’s Performance Products for 348s and 409s.
As with block casting numbers (or any casting numbers for that matter), the information on just how many blocks were made by Chevrolet is incomplete. We do know, however, that production of the 348 was not shut down when the 409 began. Chevrolet continued making the 348 to use in trucks, going into 1965.
Is the 348 oil pan the same as the 409?
While both oil pans share the same bolt pattern, there are two different pieces. So much so that anyone stroking a 348 might need that 409 pan and its increased clearances. The 409 was pretty close to being tapped out for adding any more cubic inches. But Chevy wasn’t done with evolving the 409 block.
Where can I get racing oil for a 348 block?
Racing oil pans for W motors can be found at Stef’s Performance Products for 348s and 409s. A number of suppliers make complete or partial stroker kits for 348 and 409 blocks. A complete kit usually consists of crankshaft, rods, pistons, wrist pins, rings and bearings.
