LS# verus LS7

[RBuhr69]

Opinions please...
Looking at going to LS and was wondering what are some opinions between the two motors..Both are MAST, Black Label, only difference is LS3 versus LS7(besides dry sump)...I have always wanted a 427 motor, but is there any benefit to the LS7 versus the LS3 besides it just being a HP difference. Price is not the issue here, just wondering he benefit.

Yes it will be Driven on the road/city, Highway, and occasional Autocross when possible.


LS3 416 Black Label 630HP*

Type: LS3 6.8L
Displacement: 416 Cubic Inches
Compression Ratio: 11.2:1
Bore x Stroke: 4.070 x 4.000
Rev Limit: 7000 RPM
Crank: Callies Forged
Rods: Callies H-Beam
Pistons: Diamond 2618 Alloy
Cam: Mast Custom 3-Bolt Core Cam
Heads: Mast Black Label LS3 Heads
Intake: LS3 Car Intake
Valve Springs: Mast Dual
Part Number: 117-223

LS7 427 BLACK LABEL 675HP*

Type: LS7 7.0L
Displacement: 427 Cubic Inches
Compression Ratio: 11.4:1
Bore x Stroke: 4.125 x 4.000
Rev Limit: 7250 RPM
Crank: Callies Forged
Rods: Callies H-Beam
Pistons: Diamond 2618 Alloy Pistons
Cam: Mast 3-Bolt Core Cam
Heads: Mast LS7 305 Black Label Heads
Intake: FAST LS7 Intake
Valve Springs: Mast Premium Dual Springs
Part Number: 117-304

In another words, I don't want to kick myself for not going with the 427 when I should have..lol