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Axle · 09-07-2014, 10:42 AM

SPI# CU730 if you need a radiator number. Diesel is the most common, but not all of them had the 4core. Note: New SPI "4 core" is now an aluminum/plastic 2 row super core. (No complaints with it. If anything, build quality is better than the spi copper brass cu730 it replaced).

1981 454cid Blazer is what I used to get the rubber isolators & upper brackets for the 4core.

Alex.

09-07-2014, 10:42 AM	#3
Axle Registered User Join Date: Jul 2011 Location: SW Ontario Posts: 1,221	Re: 4 core radiator SPI# CU730 if you need a radiator number. Diesel is the most common, but not all of them had the 4core. Note: New SPI "4 core" is now an aluminum/plastic 2 row super core. (No complaints with it. If anything, build quality is better than the spi copper brass cu730 it replaced). 1981 454cid Blazer is what I used to get the rubber isolators & upper brackets for the 4core. Alex.