The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - How to ID a camel back or camel hump head, and what good are they?

**Green Machine** · 07-25-2009, 03:08 PM

Don't the power pac heads (single triangle over a rectangle base marking) only have 1.72 inake valves ? Even a 283 bore will clear a 1.94 intake, still tons of machine work and parts to get old parts like that up to spec.

07-25-2009, 03:08 PM	#20
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Re: How to ID a camel back or camel hump head, and what good are they? Don't the power pac heads (single triangle over a rectangle base marking) only have 1.72 inake valves ? Even a 283 bore will clear a 1.94 intake, still tons of machine work and parts to get old parts like that up to spec. __________________ 1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 Last edited by Green Machine; 07-25-2009 at 03:10 PM.