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What type of engine?

there is a gen iv now...engine in 05 gto and corvettes...not really much changed, except for the knock sensor location and the lifter valley is redesigned for the 4-6-8 crap.

ryan
 
i know from the choices its 1st gen but it is the 2nd or third design of that block, wouldn't it have passenger side dipstick and one piece rear main seal? maybe even centerbolt heads? Duntov Rocked :saweet: :saweet:
 
ryan22re said:
there is a gen iv now...engine in 05 gto and corvettes...not really much changed, except for the knock sensor location and the lifter valley is redesigned for the 4-6-8 crap.

ryan
Click to expand...
Actually that engine is nothing more than the 5.3 SBC and it is a 4-8 engine not a 4-6-8 engine and is only offerd in the Trailblazer based SUV's and the new front drive V8 powerd midsize cars like the Monte Carlo, Impala and Grand Prix.
 
gambit420s said:
i know from the choices its 1st gen but it is the 2nd or third design of that block, wouldn't it have passenger side dipstick and one piece rear main seal? maybe even centerbolt heads? Duntov Rocked :saweet: :saweet:
Click to expand...
Yes, in '86 IIRC Gm went to a one piece main seal and in '87 they went with the center bolt valve covers. Also, I think they started getting provisions to accept roller cams.
 
Blazer1970 said:
Gen I. LT1 is gen II, and Gen III is the new LS1, and the 4.8, 5.3 and 6.0 truck motors.
Click to expand...

And GenIII all aluminum 5.7 346" found in camaros, corvettes, and t/a's. :wink1:
 
Corey 78K5 said:
Actually that engine is nothing more than the 5.3 SBC and it is a 4-8 engine not a 4-6-8 engine and is only offerd in the Trailblazer based SUV's and the new front drive V8 powerd midsize cars like the Monte Carlo, Impala and Grand Prix.
Click to expand...

so the 6.0 in the corvettes and gtos is actually a 5.3? i dont get it. the 05 6.0s are a gen iv but they dont have the 4-8 (excuse me), but they do have the castings for it.

ryan
 
yup. The "LS1" RPO really only applies to the 1997 engine when it first came out. so 98 up 5.7's aren't ls1 rpo's.
Since then, gen III motors have been generally referred to as LS1 motors.
 
the '04 corvettes and gtos were 6.0L not 5.3 Gen III motors just have those four displacemants... for now gm is supposedly coming out with a 427 smallblock gen III in '07
 
all gen III 5.7's are LS1s or LS6s

here is the others:
1998-present Generation 3 small-block pushrod V8 family:
1998-2004 LS1 - 5.7 L V8
2001-2004 LS6 - High-output LS1
LR4 Vortec 4800 - 4.8 L
L33 Vortec 5300 - 5.3 L
LM4 Vortec 5300 - 5.3 L
LM7 Vortec 5300 - 5.3 L
LQ4 Vortec 6000 - 6.0 L
LQ9 Vortec HO 6000 - High-output 6.0 L
2005-present Generation 4 small-block pushrod V8 family:
2005-present LS2 - 6.0 L
LS4 - 5.3 L Pontiac
2005-present LS7 7.0 L High-performance Gen IV engine

ryan
 
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