Car Craft Magazine Homepage Car Craft
 

Gen III V-8 Head Basics - Gen III Tech

Gen III Cylinder Head Casting, Machined and Final Part Numbers
RPO Size Part Numbers
Year Casting Machined Final Assembly
LS1
'97-'98 10215339 10215339 10215337
12558806 12558806 12558808
'99-'01 12559853 12559854 12559856
'01-'04 12564241 12559854 12559856
12559853 12564242
LS6
01-04 12564243 12560800 12560802
12569315
12564824
LQ9
'02-'04 12562317 12562318 12565363
LQ4
'99-'00 12581873 12561874 12561876
'01 12562317 12562318 12562320
'02-'04 12562317 12562318 12565363
12565364*
LM4, LM7
LR4, L59
'99-'01 12559862 12559863 12559865
'01-'04 12561706 12561708 12563678
12569862 12559863
*(this PN also good for RPO KL5; the natural gas engine)

Prev | 1  | 2  | 3  | 4  | 5  | Next
Discuss in Our Forums
Get Adobe Flash player
Get a FREE no-hassle price quote on any new car.

Related Articles

 
Shock & Bar - Bolt-On How-To
A Simple Yet Effective Suspension Upgrade... more
 
Emergency Solution!
Got a parking brake on your car? Betcha do. Does it work? Probably not, at least not real well.... more
 
Distributor Gears: What’s The Deal?
Look at the effort that goes into a ring-and-pinion installation, yet no one thinks twice about the... more
 
How To Build A Rearend
It can be hard to purchase parts that don’t offer some sort of aesthetic appeal or an obvious... more

 

Get Adobe Flash player

Car Research Guide