Big Blocks 058 241/86 cc port 063 256/114 cc port 083 243/110cc port 215 256/114cc port 241 252/116cc port 280 256/114cc port 290 256/114cc port 290 262/115cc port small plug head 291 327/120cc port 340 320/120cc port 820 255/114cc port 840 326/120cc port 842 318/112cc port 990 323/127cc port
330864 396-454 70-81 Oval Port 330865 366-427 70-76 Truck HD Oval Port 336781 454 73-85 Oval Port 343771 366-454 68-85 Truck HD 343772 366-454 76-84 Truck HD Oval Port 346236 454 75-76 Oval Port 353049 400-402 70-76 Oval Port 473328 366 68-85 Truck HD Oval Port 3732791 348 58 3758379 348 59-61 3759256 348 58 3767738 348 59-61 3781147 348 60-61 Hi Perf 3795586 409 61 360HP 3814690 409 62-64 Hi Perf 3819333 348-409 62-65 Truck 3830817 409 63-65 340 HP 3837731 409 63 RPO Z11 3852583 409 65 400 HP 3856206 396 65 Oval Port 3856208 396 65 Corvette 425 HP Sq. Port 3856213 366 66-82 Oval Port 3856260 396 68 3872702 396-427 66 Oval Port 3873858 396, 427 66 Sq. Port 3876875 427 77-85 Truck Oval Port 3904390 396-427 67 Oval Port 3904391 396-427 67 Sq. Port 3904392 427 67 Sq. Port Alm L-88 & L-89 3904393 366 66-68 Truck Oval Port 3909802 396-427 67 Oval Port 3917215 396-427 68 Oval Port 3917219 366-427 68-85 Truck HD Oval Port 3919840 396-427 67-69 Sq. Port 3919842 396-427 68-69 L-88 & L-89 Alm 3931063 396-427 68-72 Oval Port 3933148 366-427 68-84 3933149 427 68-76 Truck 3946074 454 69-71 Alm. L-88, ZL-1, LS-6 3964290 400-454 70 Oval Port 3964291 402-454 70 Sq. Port L-78, LS-6 3965198 396 68-69 Oval Port 3975950 366-427 68-70 Truck Oval Port 3986133 366-427 68-85 Truck Oval Port 3986136 366-427 68-84 Truck Oval Port 3993820 400-454 71-72 Oval Port 3994026 454 71 LS-6 Sq. port 3999241 402-454 72 Oval Port 6272292 402-454 70-75 Oval Port 14092359 427 86-88 Truck Oval Port 14092360 454 85-88 Truck Oval Port
There are 3 big block codes that I know of that aren't listed here. They are all for 1968 Chevelle/Beaumont engines. The rusty green 68 SD that sold a couple years ago has a 4W code engine but the GM of Canada docs shows a different code, I think ED or EF. There is also a long list of codes for big block marine engines, mostly 454s and 502s. James
4T 1968 Chevelle 396 325 Man Trans 4U 1968 Chevelle 396 350 Man Trans 4W 1968 Chevelle 396 350 Auto Trans
-- Edited by jfkheat on Saturday 24th of April 2010 03:56:56 PM