whats are the holes in my heads?

Asked by Jan 04, 2017 at 09:36 AM about the Chevrolet C/K 1500

Question type: Maintenance & Repair

i have a 1983 chevy silverado. usure if its a 305 or 350 but between each
valve/rocker arm their is a square hole that appears to go in the block! i have
no clue what it is but their is debree from mice. what is the holes and how do i
clean them?

4 Answers

54,605

Try a shop vacuum, but it might require disassembly to clean it up. Was this engine sitting somewhere with the valve covers off or not sealed?

54,605

The square holes are the oil drain passages that send excessive oil from the cylinder head back to the oil pan. Mouse debris there is not good. Also be very careful around mouse debris. If it is fresh you could possible contract Hantavirus if the mice were deer mice. Hantavirus kills about 1/2 of the unfortunate people that contract it. When cleaning this mess up use a respirator mask and spay the mouse mess with a mixture of bleach and water. I use about 1 part bleach to 3 parts water. This will not only keep the dust down, but will kill the virus. Do a Google search for Hantavirus.

2 of 2 people found this helpful.
Best Answer Mark helpful
54,605

The engine will very likely need to torn down and cleaned at the very least.

1 of 1 people found this helpful.

thank you very much!

Your Answer

C/K 1500

Looking for a Used C/K 1500 in your area?

CarGurus has 13 nationwide C/K 1500 listings and the tools to find you a great deal.

Postal Code:

Chevrolet C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    3,760
  • #2
    John Saffrahn
    Reputation
    2,650
  • #3
    Rowefast
    Reputation
    2,200
View All

Related Models For Sale

Used Chevrolet Silverado 1500
184 Great Deals out of 11,614 listings starting at $1,700
Used GMC Sierra 1500
247 Great Deals out of 11,532 listings starting at $399
Used Ford F-150
657 Great Deals out of 13,659 listings starting at $3,000
Used Dodge Ram 1500
52 Great Deals out of 503 listings starting at $3,488
Used Chevrolet Silverado 1500HD
4 listings starting at $9,495
Used Chevrolet Silverado 2500HD
12 Great Deals out of 1,311 listings starting at $4,995
Used Chevrolet Tahoe
7 Great Deals out of 808 listings starting at $3,995
Used Chevrolet Camaro
921 listings starting at $12,000
Used Chevrolet Colorado
22 Great Deals out of 2,120 listings starting at $1,999
Used Toyota Tacoma
41 Great Deals out of 1,140 listings starting at $7,950
Used Chevrolet Silverado Classic 1500
3 Great Deals out of 20 listings starting at $6,488
Used Toyota Tundra
49 Great Deals out of 1,417 listings starting at $2,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.