Peanut port or Large Oval???? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tomsC10R · 01-25-2004, 07:54 PM

Does anyone know off hand if these are the peanut port heads or the large oval port heads?

The casting number is 473328, which according to Mortec is a 68-69, "oval", Open, from a 366 tall deck.

Here's all the info on the passenger side head starting from the rear.
B1-78
GM1T
TRUCK
473328

Oh yeah, is there any difference between heads from a tall deck block compared to heads from a regular deck block? My block looks to be a 402 regualar deck.

Thanks

01-25-2004, 07:54 PM	#1
tomsC10R Registered User Join Date: Nov 2003 Location: Wisconsin Posts: 281	Peanut port or Large Oval???? Does anyone know off hand if these are the peanut port heads or the large oval port heads? The casting number is 473328, which according to Mortec is a 68-69, "oval", Open, from a 366 tall deck. Here's all the info on the passenger side head starting from the rear. B1-78 GM1T TRUCK 473328 Oh yeah, is there any difference between heads from a tall deck block compared to heads from a regular deck block? My block looks to be a 402 regualar deck. Thanks __________________ Tom 1968 C10 LWB. 402 BB, Holley MPI, 700R4. 4wheel Hydroboost Disk Brakes.



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