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thunderbolt · 06-27-1999, 03:47 PM

The pictures I have show the Hi-Po 289 as having 2 bolt mains but the main bearing caps are larger than non hi-po 289's. The boss 302 block has 4 bolt mains.

06-27-1999, 03:47 PM	#5
thunderbolt Registered Member Join Date: Oct 1998 Location: Houston, TX, USA Posts: 380	The pictures I have show the Hi-Po 289 as having 2 bolt mains but the main bearing caps are larger than non hi-po 289's. The boss 302 block has 4 bolt mains.