New iron block differences
#1
New iron block differences
I see summit has 2 different 6.0 iron blocks available. One is for the lq4/9 replacement and the other ly6. The ly6 replacement is a little more then 1100 bucks and the lq4 is almost 1700. What are the real differences in these blocks ? From what I’ve read, the blocks themselves are very close, yet the price is almost half more from one to the other.
Thanks for any help.
Thanks for any help.
#3
TECH Senior Member
I'm betting you nailed it right there. The new Gen III blocks are getting in short supply, thereby raising the price of admission (the old supply/demand issue). Meanwhile there are PLENTY of the newer Gen IV to be had.
#4
i thought they stopped making gen 3 blocks for a while, then started back up again
#5
TECH Senior Member
#6
#7
TECH Senior Member
They'd likely rather you bought the late one so they wouldn't have to bother making the early ones anymore. lol
Buy the late one. Probably a better block anyway.
Buy the late one. Probably a better block anyway.
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#9
TECH Senior Member
Same thing with LS3 heads. Cheapest things going.
#10
TECH Senior Member
iTrader: (16)
One is a Gen 3 block the other is a Gen 4 block.
Chevrolet Performance 12679002 Details
Cast-Iron Production LS-Series Engine Blocks
Direct replacement for Gen III Block LQ4 & LQ9
Production cast iron block
Production oiling system
6-bolt main bearing caps
4.000" finished bore (101.60mm)
9.240" deck height
Chevrolet Performance 12609999 Details
Cast-Iron Production LS-Series Engine Blocks
Direct replacement for 2008-2010 Gen IV Block RPO, LY6 & L96
Production cast iron block
Production oiling system
6-bolt main bearing caps
4.000" finished bore (101.60mm)
9.240" deck height
No provisions for Active Fuel Management
Supports 500+ Horsepower
Chevrolet Performance 12679002 Details
Cast-Iron Production LS-Series Engine Blocks
Direct replacement for Gen III Block LQ4 & LQ9
Production cast iron block
Production oiling system
6-bolt main bearing caps
4.000" finished bore (101.60mm)
9.240" deck height
Chevrolet Performance 12609999 Details
Cast-Iron Production LS-Series Engine Blocks
Direct replacement for 2008-2010 Gen IV Block RPO, LY6 & L96
Production cast iron block
Production oiling system
6-bolt main bearing caps
4.000" finished bore (101.60mm)
9.240" deck height
No provisions for Active Fuel Management
Supports 500+ Horsepower
#11
Staging Lane
Join Date: Jan 2012
Location: Nashville Tn.
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Almost all Chevrolet parts that are currently available but NOT used in production vehicles is due to the Dealer network requesting that item. If it's not available it's because the dealers are not selling that item. If the dealers get requests then at some point the factory will make a run. Usually during the summer when tooling and vacations are occurring. Once production starts it's impossible to get press or foundry time for some special part. You could stand outside the foundry in Defiance Ohio with a bull horn! Best bet is to get as many people as possible to request the part from the dealer. That always works.