Page 202 of GM Performance Parts 2006 Catalog by GM Parts Direct
ZL1 Aluminum Big-Block (front)
ZL1 Aluminum Big-Block, Four-Bolt Mains
ZL1 Aluminum Big-Block (rear)
200
ZL1 ALUMINUM BIG-BLOCK
The ZL1-optioned 69 Corvette and Camaro were without
question two of the rarest musclecars ever produced. The
massive ZL1 427 aluminum big-block under the hood elevated
these cars to instant classics the first day they hit the streets of
America. Now, GM Performance Parts has re-introduced that
same legendary aluminum block from state-of-the-art materials
to our own flawless, blueprinted dimensions. Buy the ZL1
aluminum big-block, and you can build your own supercar!
See chart on page 196 for complete specifications.
ZL1 Aluminum Block Technical Notes:
356-T6M Aluminum block
Steel 4-bolt main caps, 16 splayed on center 3 mains, dowel
located
Siamesed cylinder walls
Centrifugally spun cast iron sleeves
4.240" finished bore
4.300" max bore
4.375" max stroke
Standard deck height (9.800")
Two-piece rear main seal
Oil and water plugs are AN O-ring style
Tested to 800 horsepower!
12370850
ZL1 Aluminum Big-Block
4.240" finished bore
4.300" max bore
4.375" max stroke
Use sleeve P/N 12480035 (see page 205)
CHEVY BIG-BLOCK V-8
[close]