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Old 09-10-2006, 10:26 PM   #1 (permalink)
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87 blazer engine ID

I have an 87 Full Size 4x4 Blazer. According to what Ive heard this truck came standard with the 5.7 liter 350 v8, but my VIN number and my original owners manual clearly says my truck has the 5.0 liter 305 v8, which I thought was not available for it. What gives? Also how can I know if my 10 bolts have the gov lock or not?
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Old 09-11-2006, 06:06 AM   #2 (permalink)
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the best way to test the govlock it to put one wheel in the grass, one on the pavement, floor it, cut the wheel so both wheels are in the grass and spin up the tires real good so you lay some good rubbber when they hit the pavement. If the diff breaks then it's a govlock.
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Old 09-11-2006, 06:23 AM   #3 (permalink)
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in 87 the only engine options were the 5.7 and 6.2 diesel
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Old 09-11-2006, 09:41 AM   #4 (permalink)
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I am not 100% sure about that. My 86 was a 305 and my dad has a 1987 that he bought new with a 305. Keep in mind that is there era that the economy 305 was used very frequently. If you know the block is a 305, just find a 350 for it. As for the gov lock, remove the cover and you will know for sure.

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Old 09-11-2006, 01:28 PM   #5 (permalink)
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Quote:
Originally Posted by derek840378
in 87 the only engine options were the 5.7 and 6.2 diesel
Exactly my point, but my vin says I have the 305, I guess mine was a late 86 early 87 version then?
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Old 09-11-2006, 02:03 PM   #6 (permalink)
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Quote:
Originally Posted by derek840378
in 87 the only engine options were the 5.7 and 6.2 diesel

Nope, the 305 was the standard engine in 1987, with the 350 or 6.2 optional. In 1988 and 1989 the 350 was standard, and the 305 was not available in Blazers and Suburbans. See the factory brochures here http://brochures.slosh.com/
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Old 09-11-2006, 02:12 PM   #7 (permalink)
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Dang, dont I feel stupid for bragging about having a bigger engine then my bros 5.4 liter Triton. Oh well, thanks for the help guys.
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