The build sheet for this motor is as follows:
1999 Vortec short block bored 0.030" over align bored and decked as need be.
Sealed Power coated flat top hyperetictic pistons with a 11cc D-dish machined in tops. Hastings moly ring set, standard 305 forged rods. Compression will be 9.8:1 under a 58cc head.
305 crank 0.010/0.010" under. Clevette 77 main bearings, Sealed Power tri-metal od bearings.
Oil pump is a blue printed Sealed Power high volume Big block pump with a melling blue spring and a milodon 18310 pick-up. drive shaft is a 0.100" shorter milodon part for this application.
Cam is a Colt Cams regrind with 207*int/212*exh duration, 0.450"nt/0.459"exh valve lift 112* lobe separation angle. i have ether gear drive or double roller on hand.
Cylinder heads are mid 80s swirl port 187 castings, these heads are flow bench ported 1.84"valve with springs and retainers for 0.500" lift. peak flow intake # is 242 @ 0.500 lift over a 4" bore.
Intake is a Weiand Action Plus or Eelbrock Performer With Q-jet carb.
Re-curved HEI ignition with melonite gear.
Patriot Clipster headers for S truck.
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A fresh engine for my 88 S10. Motor at present is a early model 305 high miler from some truck. Starting point for this new build is a basket case 305 Vortec from a 1999 van i bought in peices for $260, the crank was toast from running the motor with no oil. Most of the parts im using for this build are from a priveous 310 roller that i built that spun 3 cam bearings and lost oil pressure.
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