The intake valves are bigger, and lead to the carburetor. the exhaust valves are smaller and lead to the manifolds or headers.
I am searching for 409 chevy engine
Parts and accessories for a 409 Chevy can be found online at eBay Motors. Other helpful websites are JC Whitney, 409 Chevy Performance, and Late Great Chevy.
0.019
1962
Chevy 409 is a big block V8 engine. It was produced by Chevrolet from 1961 to 1965. It was a 6.7L engine, with a single or dual four barrel carburetor.
Chevy, 408, (actually 408.7) often called 409, is a small block 400, bored out.
I can find no evidence the 409 was installed in any Chevy or GMC truck. The 348 was used in Chevy trucks and the look almost identical to a 409. But, I cannot say positive that Chevy never put one in a truck. Further research is required to give a definitive answer.
4.312 bore x 3.50 stroke.
Clockwise.
Depends on the engine installed. Starts with the Blue Flame 6 cylinder that had 90 H.P. and goes up to the 409 V8 with 409 H.P.
Chevrolet never built a 410. They built a 409 but never a production 410. You can buy a 410 aftermarket engine. The 409 was produced from 1961-65.
1, 8, 4, 3, 6, 5, 7, 2.