Level IV 350 Chevy Short Block Porter Mufflers 3L Cast Iron Gen III

3L Cast Iron Gen III Block (3

Stage II 5

Intake Gaskets

The uniquely designed interior chamber is fitted with a gapped steel spring and packed with stainless steel wool to channel the exhaust and make that distinctive Porter Muffler sound

Fuel pump relay

Level IV 350 Chevy Short Block Porter Mufflers 3L Cast Iron Gen IIIProduct Details New DART SHP Splayed Main Cap Block 5. 7" 6. 0 Howards Billet Connecting Rods Mahle Pistons 15, 18, 23 Degree (Flat or Dome) Super Lightweight Crankshaft Clevite Performance Rod & Main Brgs. Pro Series 1. 2, 1. 5, 3. 0mm Rings Machined & Indexed Digitally Balanced Assembly Fully Assembled