WebMar 31, 2024 · The big blocks have an extra cylinder. It means that the firing order is 1-8-4-3-6-5-7-2 (1, 8, 4, 3, 6, 5, 7, and 2). The difference in the big blocks is cylinder number three. On a small block Chevy, this … WebAug 17, 2008 · 320 CFM is a desent head flow number for a 400 SB. The Zo6 heads flow 360-380 from the factory that are CNC ported. If you have less than 300 CFM for a 400, it will be a little restricted,but the blower will force it through. MBHD.
Mortec - Chevy Small-Block Casting Numbers, Engine Codes and …
WebChevy V8 BBC Block and Head Casting Numbers. Chevy V8 "W" Motor 348-409 Casting Numbers. Chevy V8 Crankshaft Casting Numbers. Chevy V8 Crankshaft Journal … Web4 rows · Sep 15, 2024 · Engine code stamping numbers are essential since they provide you with useful information about ... addi gnome
SBC Head Flow Numbers?? - Team Camaro Tech
WebFeb 23, 2024 · Connect a fuel pressure gauge to the fuel rail and start the engine. Check the fuel pressure and compare it to the manufacturer’s specifications. If it is too high or too low, you need to inspect the components of the fuel system such as the fuel pump, fuel filter, and fuel pressure regulator. 5. Check Compression. Web336 rows · Chevy cylinder head Identification - Small block casting numbers Chevy … WebThe bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. The easiest way to reference any production head is with the last three digits of its casting number. The most famous heads are the 461 and 462 heads that offer 160-cc intake ports, 64-cc chambers, and 2.02/1.60-inch valve sizes. addi griffith