Hi!
I´m about to do a rebuild on my K1500 TBI engine, 5,7 vin K.
I´ve measured the cylinder bores with a bore indicator (with a dial indicator) and i´ve noticed that i have some bore, taper and out of round measurments that are out of specs, so with this being a budget rebuild i wanted to check with you guys if you think a boring is needed or if i can get away with these measurements, im thinking of going with a rebuild kit with new pistons etc and do a honing.
Measurment of the worst bores are:
Cylinder 1: Diameter at top 4.0029"
Cylinder 2: Taper 0,0018
Cylinder 3: Diameter at top 4.0035"
Taper 0.0018"
Out of round 0.00276"
Cylinder 4: Diameter at top 4,00315"
Taper 0.00157"
Out of round 0.0024"
Cylinder 5: Diameter at top 4,00315"
Out of round 0.0031"
Cylinder 6: Diameter at top 4,0027"
Taper 0.00118"
Out of round 0.0029"
Cylinder 7: Diameter at top 4,0027"
Cylinder 8: Diameter at top 4,00315"
Haynes says the limits are 0.001" for taper, 0.002" for out of round and bore 4.0025. I would like to get your opinion regarding this due to this being a budget build but if a boring is neccesary the so be it, but i don´t want to spend money at the machine shop if its not needed due to the prices here in sweden...
Thank for all the help i can get!
/Sam