Major help needed!!!!!!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rlcasey75 · 06-05-2009, 11:22 PM

Ok i have a 75 chevy k-10 with a 350 motor and a th350 tranny. i just recently bought this truck and know it had issues. So i brought it to a mechanic and he said that the racing cam that the previous owner had put a racing cam that was too big for the motor in it and that the torque converter was stock. He also said that the engine had blow by and a poor ring seal. He says that i need a new engine which really is not an option because of money. i am just starting with this project and know little about engines. i was wondering what all this meant and if there are any resolutions besides a new engines. i am not affraid to get in to it an fix it i just need to know how and where i can find the info. so if you have any resolutions or and ideas i would really apprieciate it or just some moral support. lol HELP!!!!!!!!!

79gmcc15 · 06-05-2009, 11:31 PM

gl on the problem. but a friendly FYI double posting is a No No.

**old Rusty C10** · 06-06-2009, 09:38 AM

if you have blow by it means the lower half of the motor is weak ( too m uch clearance between piston rings and cylinders.. its time for that block to be rebuilt.... the PO prolly was trying to liven up the top end and ruined the bottom end in the process... find a good used motor and swap it in until you can afford to rebuild

smashingchuck · 06-06-2009, 11:14 AM

Bottom line is it's time for a heart transplant.

rfmaster · 06-06-2009, 03:27 PM

A complete running motor (350) can be had for $300 around here (SoCal) The tricky part is having time to find it and ability to perform a swap. In the past I have swapped engines, with help of a friend, in a about day - going very slow. If you do go that route - makes sure that all hard to access gaskets (oil pan, front seal, rear seal) on your replacement engine are in good shape. A compression check is order, listen to it run before hand is a big plus.
For the most part common tools are needed (nothing fancy) just a good set of SAE wrenches, shallow and deep sockets, some RTV and plenty of elbow grease. Couple BFS to make things align, jack, jack stand, pans, rugs, etc Take notes where all hoses and wires have gone to on original engine - i.e. take pictures and use of zip lock bags prevents hardware mix-up.

Having done this (heart transplant) on more than a few occasion, on different makes (Chevys, ford, Mazda, BMW, Toyota), time and space to do it should be allocated - rushing to complete is a bad idea.

//RF

06-05-2009, 11:22 PM	#1
rlcasey75 BoomerSchooner75 Join Date: May 2009 Location: Mountain Home ID Posts: 96	Major help needed!!!!!!! Ok i have a 75 chevy k-10 with a 350 motor and a th350 tranny. i just recently bought this truck and know it had issues. So i brought it to a mechanic and he said that the racing cam that the previous owner had put a racing cam that was too big for the motor in it and that the torque converter was stock. He also said that the engine had blow by and a poor ring seal. He says that i need a new engine which really is not an option because of money. i am just starting with this project and know little about engines. i was wondering what all this meant and if there are any resolutions besides a new engines. i am not affraid to get in to it an fix it i just need to know how and where i can find the info. so if you have any resolutions or and ideas i would really apprieciate it or just some moral support. lol HELP!!!!!!!!!

06-05-2009, 11:31 PM	#2
79gmcc15 Gettin It One Pice At A Time Join Date: Oct 2004 Location: everett, washington Posts: 2,688	Re: Major help needed!!!!!!! gl on the problem. but a friendly FYI double posting is a No No. __________________ RIP ELJAY Work In Progress 1979 GMC C1500 Trailering Special. Getting the truck done, one piece at a time. “You can tell a lot about a fellow’s character by his way of eating jellybeans.”Ronald Reagan “I don’t know the key to success but I know the key to failure is trying to please everybody.” Bill Cosby

06-06-2009, 09:38 AM	#3
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,277	Re: Major help needed!!!!!!! if you have blow by it means the lower half of the motor is weak ( too m uch clearance between piston rings and cylinders.. its time for that block to be rebuilt.... the PO prolly was trying to liven up the top end and ruined the bottom end in the process... find a good used motor and swap it in until you can afford to rebuild __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

06-06-2009, 11:14 AM	#4
smashingchuck It'd be alot cooler if you did Join Date: May 2003 Location: Three Rivers, MI Posts: 2,345	Re: Major help needed!!!!!!! Bottom line is it's time for a heart transplant. __________________ 78 Build Thread 4Runner Build

06-06-2009, 03:27 PM	#5
rfmaster Registered User Join Date: Oct 2003 Location: OC CA Posts: 1,374	Re: Major help needed!!!!!!! A complete running motor (350) can be had for $300 around here (SoCal) The tricky part is having time to find it and ability to perform a swap. In the past I have swapped engines, with help of a friend, in a about day - going very slow. If you do go that route - makes sure that all hard to access gaskets (oil pan, front seal, rear seal) on your replacement engine are in good shape. A compression check is order, listen to it run before hand is a big plus. For the most part common tools are needed (nothing fancy) just a good set of SAE wrenches, shallow and deep sockets, some RTV and plenty of elbow grease. Couple BFS to make things align, jack, jack stand, pans, rugs, etc Take notes where all hoses and wires have gone to on original engine - i.e. take pictures and use of zip lock bags prevents hardware mix-up. Having done this (heart transplant) on more than a few occasion, on different makes (Chevys, ford, Mazda, BMW, Toyota), time and space to do it should be allocated - rushing to complete is a bad idea. //RF __________________ "The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17)



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