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R
454 (7.4L) swap / repair options - 1999 Suburban K2500
The problem with smog 454's is low compression. Every point of compression adds 50-75 HP in a BBC. A proper BBC will rev to 7K if you want it to but that doesn't make it a good tow rig. Torque is your friend. Build for torque.
Rob Herrington
Post #70
Sep 14, 2020
Forum:
Engine Performance + Maintenance
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