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Pontiac of the Month

58Bonne's 1958 Bonneville

2019 June
of the Month

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Poncho pete

Intake manifolds

Question

Does anyone know if a 1956 intake manifold would fit a 1955 287 I’m looking to convert to a 4 barrel carb Thanks 

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Casting number 521571 should be the number for a 1956 Pontiac 4-bbl intake off of a 316 Pontiac V8. The 287, 316, 347, and 370 were the part of the Strato Streak V8 engines. It should fit your 287.

The casting number is usually near the #1 cylinder intake runner - by the thermostat. 

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Thank you Frosty

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You are welcome sir. We'd love to see pictures of your project.

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Sweet looking ride Poncho Pete. Tells us all about it and when you get your intake installed, let us know how she performs.

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Thanks for sharing Pete.

What you are showing appears to be the engine head casting number. The casting number on the intake manifold I am referring to is like in the picture below. So in this photo, the intake manifold casting number is 9790140. You are looking for casting number 521571.

 

image.png.6e37a6498619532ba42540dfef378efe.png

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