Chevrolet Performance 12480175 - 350 cid, 4.117-4.155 in. Bore GM Bowtie Sportsman Block (1-Piece Rear Main Seal)
These engine blocks are currently selling for more than $3250 USD.
You can get one today for that price Australian!!!
12480175
• CNC-machined cast-iron competition block
• +/-.005" machining tolerances
• 4-bolt nodular mains, splayed caps on center three mains
• +/-.005" machining tolerances
• 4-bolt nodular mains, splayed caps on center three mains
• Priority Main Oiling
• 4.117" finished bore
• 4.155" max bore (siamesed cylinder bores)
• Tall lifter bores
• 4.117" finished bore
• 4.155" max bore (siamesed cylinder bores)
• Tall lifter bores
Rear seal adapter available (SOLD SEPARATELY) – which is necessary when using a 2 piece rear main seal crank and an early pre 86 type pan