? Maximum Bore 454 Bow Tie Block
#1
Senior Member
RACING JUNKIE
Thread Starter
Join Date: Nov 2004
Location: St. Louis, Missouri
Posts: 661
? Maximum Bore 454 Bow Tie Block
I have a Mark IV Bowtie Block 454 Hy Per Series 9.8000 Deck
Numbers on Block are:10051107
4 Bolt Main
9.800 Deck Height
Siamesed Cylinders,
Anyone know what the Max Bore Size is on this block.
Numbers on Block are:10051107
4 Bolt Main
9.800 Deck Height
Siamesed Cylinders,
Anyone know what the Max Bore Size is on this block.
#5
Senior Member
DYNO OPERATOR
Join Date: Oct 2004
Location: florence ky
Posts: 498
I don't think i would even try to take it out that far i had one and we bored it out to 4.460 and went thru on one cyld. and the four corners went to 4.500 .
so we went back sleeved them and i got another set of pistons and redone it .
so we went back sleeved them and i got another set of pistons and redone it .
#8
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
hmm a bit confused a gm bowtie block is used as much as dart/merlin around here for 540 + builds and tall decks are very common to use for 632s for ts/td guys. The block is good and less money then a dart.