WebNov 30, 2010 · I have flowed plenty of factory big block chevy heads, so here it goes. 290 & 049 heads have oval ports. 290s are closed chamber, 049s open chamber. They both flow in similar numbers until .400 lift when the 049 head will flow better at higher lifts because of less valve shrouding. This is especially true when 2.19 intake valves are … WebWhether you are an engine builder, drag racer, circle track racer, boat racer, road racer or a hobbyist doing a classic Chevrolet restoration, Mortec has information you can use, starting with our ever-popular Chevy casting number lists for small-block (SBC), big-block (BBC), and 348-409 V-8 engine blocks, cranks and heads.
Chevrolet 454 Cylinder Head Remanufactured Suburban 96-00 …
WebChevy Engine – Big Block: 290: CH20245: $305.00: GM: 6.6 – 396: V8: 68-72: Chevy Engine – Big Block: 148: CH20247: $305.00: GM: 6.6 – 400: V8: 71-82: Chevy Engine … Web60 rows · accueil engine code. Chevrolet. Chevrolet Big Block Cylinder Head Casting Numbers. RECTANGULAR PORT - Valve size 2.19 intake, 1.88 exhaust government jobs sunshine coast
Mortec Chevy V8 Big Block Casting Numbers
Web44 rows · Chevrolet Big Block Heads were offered in many different variations within their 51 years of ... WebBig Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. Chevy Intake Manifolds Use these numbers to … WebBBC Head Casting Numbers. Click Header to Sort. Casting Number. Year. Port Type. Chamber Type. C.I.D. Chamber Size. Notes. 330864. 68-84. ... Aluminum Olds/Chevy DRCE 3 "Pro Stock" for blocks with 4.900" bore spacing. T = Tall deck Oval includes both "peanut" (also called "round") ports and large oval ports ... children of hypnos powers