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Motor 343


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hoi een 360 is het zelfde als 343

een amc 360 is een stroked 343 met grotere boring dacht alleen de koppen van een latere 360 zogenoemde dagleggs werden dus dat zou evt wat meer power geven

ander voordeel van 360 onderdelen die zijn ( en heb ik ) genoeg

 

scoob

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hoi een 360 is het zelfde als 343

een amc 360 is een stroked 343 met grotere boring dacht alleen de koppen van een latere 360 zogenoemde dagleggs werden dus dat zou evt wat meer power geven

ander voordeel van 360 onderdelen die zijn ( en heb ik ) genoeg

 

scoob

Alleen een andere  slag, zuigers, andere koppen, andere inlaat e.d. , maar verder gewoon hetzelfde... :wacko:

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AMC heads make their engines extremely competitive if not superior to other small block engines. In 1970 all three blocks grew in deck height and the strokes were increased on the 290 and 343. The 290 became the 304, and the 343 became the 360. For some reason, however, the 390 remained a 390 in 1970. It wasn't until 71 that the 390 was stroked to the 401. Like the 390, the 401's crankshaft and connecting rods are forged steel. The other change in 70 was the switch to the dog leg heads (again named after the exhaust port shape). These heads are reported to flow 50% better on the exhaust side than the rectangle port heads and are thus the best for performance. There are two reasons for the flow increase: Firstly the area of the port is larger, due to the dog leg. Secondly the shape of the port floor was changed from a concave to a convex curve. The concave floor tended to bend the exhaust flow upwards which caused turbulence when the flow was forced to go down into the exhaust manifolds. By switching to a concave floor the curvature of the flow starts in the head and proceeds much more smoothly into the exhaust manifold resulting in less turbulence and better flow. As before there were two versions, a small valve one for the 304 and a large valve one for the 360/390/401. Again, like the 290, unless you have an extremely radical 304, you're probably best to stick with the small valve head on the 304. The late model 304 head is a good option for the early 290's but there are a few other things to consider, which are discussed later.

 

klopt maar niet de vroege 360 blokken

maar ging toch of de koppen passen

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