TAF2003
OBS Enthusiast
Greetings,
Has anyone with a stock 1996 5.7L Vortec replaced the timing chain/gear set? I can't seem to figure out what set is required.
What I have:
1996 GMC Yukon, 2WD
5.7L VIN R
4L60-E transmission
167,000 miles
Looking at just the timing chain, the AC Delco site lists this part number for a 1996 5.7L Vortec VIN R with 4L60-E transmission: 14087014
However, that part number at RockAuto has a concerning description (assuming it's correct): Double-roller with 48 links. The other chains for that same model year and engine appear to all have 46 links and have different widths (0.275/0.280 in or 0.400 in). The other chains also appear to have four plates per link while the ACDelco chain has nine plates per link (that's interesting...).
Thought I'd punt and search for a set/components at Cloyes, but it doesn't list any timing parts for the 1996 5.7L engine at all. It does list parts for the 1995 5.7L and the 1997 5.7L though. The parts for the 1995 5.7L are different than the 1997 5.7L. I'm assuming that's because the 1995 is TBI and the 1997 is Vortec.
Just for fun, I looked at 1AAuto as well. The chain they sell looks just like the ACDelco 14087014. It's spec says it's 0.400 in wide with 46 links (not 48). However, they specify it's for the engine mated to a 4L80-E transmission.
Tried Melling as well. For a 1996 5.7L they list two different widths of timing sets and both say Vortec in the description: 3-202SA (0.275 roller timing chain) and 3-506SB (0.400 silent timing chain).
Since this is my daily driver, I can't be down that long; so, I figured I'd check the local parts stores so when I take current timing set out of the engine, I can compare it to what they have in stock. However, Napa/Oreilly/AdvanceAuto/Autozone don't have the timing set for this engine in stock.
So.....
Any words of wisdom?
thx,
andy
Has anyone with a stock 1996 5.7L Vortec replaced the timing chain/gear set? I can't seem to figure out what set is required.
What I have:
1996 GMC Yukon, 2WD
5.7L VIN R
4L60-E transmission
167,000 miles
Looking at just the timing chain, the AC Delco site lists this part number for a 1996 5.7L Vortec VIN R with 4L60-E transmission: 14087014
However, that part number at RockAuto has a concerning description (assuming it's correct): Double-roller with 48 links. The other chains for that same model year and engine appear to all have 46 links and have different widths (0.275/0.280 in or 0.400 in). The other chains also appear to have four plates per link while the ACDelco chain has nine plates per link (that's interesting...).
Thought I'd punt and search for a set/components at Cloyes, but it doesn't list any timing parts for the 1996 5.7L engine at all. It does list parts for the 1995 5.7L and the 1997 5.7L though. The parts for the 1995 5.7L are different than the 1997 5.7L. I'm assuming that's because the 1995 is TBI and the 1997 is Vortec.
Just for fun, I looked at 1AAuto as well. The chain they sell looks just like the ACDelco 14087014. It's spec says it's 0.400 in wide with 46 links (not 48). However, they specify it's for the engine mated to a 4L80-E transmission.
Tried Melling as well. For a 1996 5.7L they list two different widths of timing sets and both say Vortec in the description: 3-202SA (0.275 roller timing chain) and 3-506SB (0.400 silent timing chain).
Since this is my daily driver, I can't be down that long; so, I figured I'd check the local parts stores so when I take current timing set out of the engine, I can compare it to what they have in stock. However, Napa/Oreilly/AdvanceAuto/Autozone don't have the timing set for this engine in stock.
So.....
Any words of wisdom?
thx,
andy