Both of mine came factory so cant tell how much trouble it is .... I can tell ya if you do it you WILL LOVE IT ! ! ! I drive a 454 daily either my street machine that eats Mustangs or my 4X ..... there's NO REPLACEMENT FOR DISPLACEMENT ! When in doubt bore it out ....

Oh yeah welcome to the site ...


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB