this is going to be my first time rebuilding an engine and i dont want it to turn bad. my friend has a 87 4.9 that needs a rebuild. its got extreme blowbyand 0 compression on cylinder 6. even tho it had bent pushrods, they were in other cylinders so we think rings are gone. the cylinder seams undamaged so we were gonna try and do a rebuild without any machining. we dont have much time to get the truck running so i want to order parts as soon as i can and were gonna finish pulling the engine this week. im also gonna order parts for my truck to rebuild it cause my oil pressure has been very poor latley and i want to rebuild before real damage occurs. not to mention i have 2 other friends who want me to help them rebuild there trucks.
we dont have a high budget so a master rebuild kit was looking best in price. but i was wondering if its best to piece the rebuild together so i know what its got. but i really dont know what kind of parts to get. can someone explain the differences beterrn these options?
*iron vs chrome vs moly rings
*main bearings with 1/2, 3/4 or full groove.
*bi metal vs try metal bearings
*stock size bearings vs 0.001 over/under sizebearings
*upper vs lower vs both groove locations
*honning beads vs honning stones vs neither
*brands i should use or stay away from? sealed power? clevite P or H?
just some other info to add. he eventually plans on turboing his 4.9 if that means anything different in the parts i should pick out. i guess its something he found out about and really wants to but i havent looked into it myself to see what it involves. my engine is a DD, i might put some GT40 heads on igf there avalible at the JY. when im offroad tho i usually like the upper RPMs for extended periods of time never 6 but very often around 4-5k RPM so i want to make the engine more durable since i htink thats why my bearing are soo worn. all the other trucks are gonna be stock DDs
we dont have a high budget so a master rebuild kit was looking best in price. but i was wondering if its best to piece the rebuild together so i know what its got. but i really dont know what kind of parts to get. can someone explain the differences beterrn these options?
*iron vs chrome vs moly rings
*main bearings with 1/2, 3/4 or full groove.
*bi metal vs try metal bearings
*stock size bearings vs 0.001 over/under sizebearings
*upper vs lower vs both groove locations
*honning beads vs honning stones vs neither
*brands i should use or stay away from? sealed power? clevite P or H?
just some other info to add. he eventually plans on turboing his 4.9 if that means anything different in the parts i should pick out. i guess its something he found out about and really wants to but i havent looked into it myself to see what it involves. my engine is a DD, i might put some GT40 heads on igf there avalible at the JY. when im offroad tho i usually like the upper RPMs for extended periods of time never 6 but very often around 4-5k RPM so i want to make the engine more durable since i htink thats why my bearing are soo worn. all the other trucks are gonna be stock DDs