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#1 |
Hot Rods For Life
Join Date: Sep 2001
Location: Waxahachie, TX
Posts: 3,305
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Maybe.
I have only had the truck a year and a half. The motor was previously rebuilt before I got it with mabye 4000 miles since rebuild. I saw the receipts. Any how, just cruising down the high way and I start to hear a terrible clapping sound. Limp over to the side of the road and the sound gets louder and harder as I pull over. Then the motor dies. I Got towed home. Truck still starts, just with a horrible knocking. Am I right? A rod thrown? I think I can get by with just replacing the short black right? It's a 307 are the other parts interchangable with w 350? Anyway, I was pi$$ed. Last edited by Zumo; 07-28-2003 at 03:11 PM. |
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#2 |
Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,450
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Everything off your should bolt up to a 350. I don't know if your heads will be what you want on a 350.
That sux about your engine. Why I am thinking about a crate motor with a warranty!
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"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. ![]() We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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#3 |
Hot Rods For Life
Join Date: Sep 2001
Location: Waxahachie, TX
Posts: 3,305
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Yeah, I was thinking of upgrading the heads.
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#4 |
Registered User
Join Date: Jul 2001
Location: Munster, IN
Posts: 1,100
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zumo,
when my straight six went, it wasnt a rod. the head dropped a valve, which knocked around in the piston cylinder for about 30 seconds, and then rammed itself into the side of the front cylinder wall. (this consequently shattered the piston, dropped the piston rod, which rammed up into the bottom of the block). anyways, i pulled the head, and found an additional two valves were completely frozen. because of that whole experience, i believe upgrading the heads is the way to go. hopefully, there isnt any damage to the block. but as long as that engine is knocking, DONT RUN IT if you can avoid it! good luck tearin her apart, and let us know what the outcome is! jewels. ![]()
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68 C10 Red Step 350 my first child & main focus 58 3200 Apache LWB Step the upcoming project |
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#5 |
Where's my beer?
Join Date: Aug 2002
Location: I live in the state of denial....
Posts: 5,621
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Did you take the valve covers off yet to see what was the damage?
I had the same kind of problem on the highway when I was going to KS earlier this month, I was doing maybe 70 mph and all of a sudden I heard this snappind/popping loud noise, I pulled over and checked real quick under the hood, and everytime I'd hit the gas the clapping would get louder, I limped to the next exit and got to a shop, guy there listened to my motor and it said it was either a rocker arm or a pushrod, I pulled the valve covers off and sure enough, a rocker arm had broken in half!, replaced it and $40 later I was on my way, just ask Longhormail, he saw that rocker arm. I hope that you only have the same problem I had, good luck tearing that motor apart.
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Paul How do you make the invisible, visible?.........You take it away. |
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#6 |
David Tye
Join Date: Jul 2003
Location: Abbeville, Alabama
Posts: 52
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it couldnt be a rod, or it would'nt be runnin and you would most likely have a large exit hole in the block . hopefully it's like they have said, and you've just got a valvetrain problem. much luck!
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David -68 GMC w/327 |
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#7 |
Hot Rods For Life
Join Date: Sep 2001
Location: Waxahachie, TX
Posts: 3,305
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Well I pulled one side and it looked fine. I really havent had time to look at it since I am putting up a privacy fence. That was what I was using it for. I was lucky I was able to pick up all the lumber before it crapped out on me. I'll probably look at it in a few days.
Last edited by Zumo; 07-28-2003 at 03:08 PM. |
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#8 |
Registered User
Join Date: Dec 1999
Location: LEXINGTON,SC,USA
Posts: 208
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my 327 imploded about 2 months ago, same kind of noise, also on the interstate, mine broke the crank under a cap.
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TIM ![]() '71 CUSTOM C-10 torch red ,350 roller GM crate,3.73 GEARS, REAR 4"DROP SPRING, FRONT 2.5" DROP SPINDLE-1.5"lower spring, FRONT=17x8(4.5bs) W/265-60-17, BACK=17x9.5 (5bs)W/285-60-17, Vintage Air Sure Fit AC------NEVER ENDING PROJECT!! |
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#9 |
Registered User
Join Date: Aug 2001
Location: escondido, ca 92026
Posts: 1,222
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it's pretty easy to tell an upper end problem from a lower end one by the sound, and the location... you may have spun a bearing or two, which would allow the motor to run but have a serious lower end knock...
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'72 short step, 350, 700R4, tilt, ps, pdb, a/c, lowered coils, etc., other work in progress... San Diego, CA 72 Stepside Project |
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#10 | |
Hot Rods For Life
Join Date: Sep 2001
Location: Waxahachie, TX
Posts: 3,305
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Quote:
Last edited by Zumo; 07-28-2003 at 03:13 PM. |
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