Re: i need to know if anyone out there knows what the cross reference is for the 3.0
A 3.0 engine is a 3 liter (61 x 3 = 183 Cubic Inches). It was not used in cars but I'm betting the timing gear set is the same as the 2.5 liter (153 cubic incher). Take your old gears with you to NAPA and tell them to pull a timing gear set for a 2.5L Chevy of the same year as your engine. Compare them. You don't need a cross reference number. NAPA will do the figuring. If you still feel you want the GM part numbers, do the same thing at your local Chevy dealer. If the parts guy is old enough to get into a bar he/she should be able to figure it out.
I'm Sorry Silvertip,....... But it Don't, Won't Work that Way..........
The 2.5l motor that Chevy has been putting in Cars,+ little Trucks for the last 30 Years,..........
Is
NOT the Same as the 2.5l, 153cid Marine/ Industral motor that has been used in Boats even Longer.......
While Both motors are called 2.5l Chevies,..... They share Absolutely Nothing,.... Totally Different Castings, Cranks, Blocks, Heads, ALL Different..........
And,........... The 3.0l is a 181cid,........ 4" Bore X 3.60" Stroke X 4 = 181cid........