All gm's late model 4.8, 5.3, 5.7, 6.0, 6.3, 7.0 engines are of the same physical size. It wont fit any better then an ls2, it's the same package.

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2007 Sky Redline
Dejon 5027BB & Piping - RPI I/C - Magnaflow+Cutout
365 RWHP 351 RWTQ
2002 Honda RC-51 RVT