What could cause this? I am very happy that it was just this but all that metal went somewhere.? I hope it didn't ruin the oil pump or camshaft. Pulled the distributor out and found this: I decided to pull off the distributor cap and could move the rotor around. I checked compression highest was 243 and low-207 (this was a scary moment checking these) He was nice enough to give me a ride about 2.5 miles to my house and then called a tow truck.
After the battery was about dead after trying to start the dang thing so long, I saw headlights coming down the road and flagged them down and th guy stopped for me. For some reason we never get snow here or not even much sleet, well just as my truck broke down it started snowing extremely hard and my black truck was turning white as I realized I had no phone or wallet with me. Run down the road but previously I noticed that my cell phone was dead and left it there to charge, not thinking about that I did this before and left and it there (mistake). I will tell you I am a believer in prayer. I was in disbelief and sick that all this work and money and I messed it up royally by doing something stupid. I turned around and was proceeding to see if it would spin the tires on taking off down hill and all of a sudden there was a weird noise and the truck engine lost all power and was rolling in gear making squalling noise (I guess the transmission since no rpm anymore). I actually left 2 black marks about 40 ft long. If they don't have the step you should be good to go.I was running my engine really hard for the first time pushing it this hard. I have no idea why they did this but they did and being that your block is also a 1987, you need to check your lifter bores. Here is a pic of the stepped lifter bores. Here is my thread from when I was searching for an answer as to why my supposedly roller compatible block wouldn't work with roller components: EVERYTHING appeared roller correct and was except for the stepped lifter bore.Īs an aside, I installed early heads and an early carb intake on the 1995 block (no problems at all) and used a factory, old style (carb type) HEI with no issues although I did change the HEI gear to a 'melonized' factory gear to work with the roller cam. the cam thrust surface was flat and accepted the retainer, the lifter bores were the correct height and flat on top, to accept the roller lifters and the dog bones, and the lifter valley had the bosses for spider retention. Keep in mind, this block had the appearance of being perfectly capable of accepting the swap to a factory roller cam. Being that the block you are talking about is also from 1987, I'd make sure the lifter bores aren't stepped before anyone moves forward with the roller conversion. I ended up locating a 1995 flat tappet (from a truck) that did not have the stepped lifter bores and swapped in my roller stuff.
The engine ran on my test stand but luckily I found the problem before I installed the engine in a car. The lifters fit as they should have but due to the step, part of the lifter ended up being exposed (being that the roller lifter is taller than a flat) and the end result was oil spraying everywhere (inside the lifter valley, under the intake), being released from the lifter when it should have been forced up the pushrod. The lifter bores where "stepped", not uniform from top to bottom. After much head scratching (I have an old thread on this site specifically about this problem) it was determined that the factory had performed a second machining operation to the lifter bores and this machining operation prevented the use of roller lifters. After reading and verifying that I did indeed have the lifter valley bosses that, in my case were not drilled and threaded, I went ahead and purchased everything needed to complete the change from flat to roller. According to a magazine article I read "If the lifter valley has the bosses for the dog bone spider, it will accept a factory roller cam, even if the bosses aren't drilled and threaded". I had a 1987 block as well but it was a 305 from a 1987 Monte SS that came with flat tappets. Maybe the info below is something to keep in mind though if the thought of a roller swap crosses the table at some point in the future. The text written below was written before this paragraph because I thought you wanted to swap to roller stuff. Whoops, I just reread your post and it states the block WILL accept roller stuff but it seems you AREN'T intending on running roller stuff. BE CAREFUL IT MAY NOT ACCEPT ROLLER EVEN IF IT LOOKS LIKE IT SHOULD !!!!
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