LigHtEmUp01

i just bought a z28 with high miles and was wondering if my 4bolt main block that i have built that came out of a mid 90's truck will work in place of the lt1 block? my plains are to buy bigger center bolt heads and keep the factory tb and intake setup. i basically want to know can i use my truck shortblock and bolt the factory lt1 top end on it?

Adam1203

iTrader: (5)

no you can not. the lt1 block is reverse cooled

DAVE00

iTrader: (10)

+1 - There is reverse cooling and also the WP is driven by the timing chain gear vs. the belt driven of most SBC's. There's also the opti and don't forget that.

redbird93

the truck block should just bolt right in as far as motormount location and i know bellhousing will. Lt1 components no, but you could use any cmallblock stuff out there, you have alot more choices than if you went with lt1. Is it a vortec?

LigHtEmUp01

no its pre vortec. its a 4 bolt with new cam bearings/ freeze plugs. turned crank, reconditioned rods/ flat top pistons. bored .30 with a mild summit cam.

DAVE00

iTrader: (10)

Like stated, it will fit fine - that's not the issue. None of the LT1 specific parts will work - WP, Opti, Timing cover, heads, etc..

Adam1203

iTrader: (5)

wont he have a clearance problem with the distributor?

DAVE00

iTrader: (10)

Might have to trim the cowl a bit, but I think they can be run esp with the low profile dissy caps on the market.