Re: [Chevelle-list] Stroked 396

[Gene's General Restoration Parts]

Here is an interesting read I found that list stock bore and stroke. (I couldn't remember if the 427 was a 396 block and 454 crank or a 454 block and 396 crank so I had to look it up) Gene 396 The 396 in³ (6.5 L) V8 was introduced in the 1965 Corvette as the L78 option. It had larger bore and stroke at 4.094 in by 3.76 in (104 mm by 96 mm) than any previous small-block and produced an amazing 425 hp (317 kW) and 415 ft.lbf (563 Nm). 1965 Chevrolet Corvette 1967-1969 Chevrolet Camaro [edit] 402 The 402 was simply a 396 bored out by .030 in (0.8 mm). [edit] 427 The huge 427 in³ (7 L) V8 was introduced in 1966 on the Corvette. Bore was up to 4.25 in, and the power ratings were said to be conservative. The hydraulic-lifter L30 (L36 in 1968) option was rated at 390 hp and 460 ft.lbf (624 Nm), while the solid-lifter L72 pushed out 425 hp (317 kW) and 460 ft.lbf (624 Nm). The 1967 L89 (1968 L71) increased this to 435 hp (324 kW) and 460 ft.lbf (624 Nm), while the L88 from the same years produced 560 hp (418 kW). The 1969 ZL1 is one of the best-remembered big-blocks. Putting out 430 hp (321 kW) and 450 ft.lbf (610 Nm) from a special camshaft and tuned Holley carb in an aluminum intake, it was a $2000 option! But the all-aluminum engine block weighed just 98 lbs, less than half the weight of a similar iron block. Just two production Corvettes were made with this option, making it one of the rarest. The 427 was also used in GM full-size trucks. 1966-1969 Chevrolet Corvette [edit] 454 The big-block was expanded again for 1970 to 454 in³ (7.4 L) with a 4.251 in (108 mm) bore and 4 in (102 mm) stroke. The 1970 Corvette LS5 engine produced 390 hp (291 kW) and 500 ft.lbf (678 Nm). There was a one-off LS7 which was tuned for performance, with 465 hp (347 kW) and "just" 490 ft.lbf (664 Nm). But included was the king of muscle car engines, the LS6 454. This engine produced 450 hp (336 kW), but replacing the headers could bring it up to 500 hp (373 kW). Power began falling off after 1970, with the 1971 LS5 producing 365 hp (272 kW) and 465 ft.lbf (630 Nm), and the new LS6 option coming in at 425 hp (317 kW) and 475 ft.lbf (644 Nm). Only the LS5 remained in 1972, now at just 270 hp (201 kW) and 390 ft.lbf (529 Nm). The 1973 LS4 was at 275 hp (205 kW) and 390 ft.lbf (529 Nm), with 5 hp (4 kW) and 10 ft.lbf (14 Nm) gone the next year. 1974 was the last year of the 454 in the Corvette. GM continued to use the 7.4 L 454 in their truck line, introducing a new Vortec 7400 version in 1991. 1970-1974 Chevrolet Corvette ----- Original Message ----- From: Clint Hooper To: The Chevelle Mailing List Sent: Tuesday, July 19, 2005 9:46 AM Subject: Re: [Chevelle-list] Stroked 396 A 396 block would have to be notched to clear the longer stroke. 454 blocks are easy to find,though. Clint Hooper H&H Custom,owner 1969 El Camino ProTourer 2001 H-D FLHR custom bagger http://dalesplace.com/misc/friends/clint/clint_hooper.htm ----- Original Message ----- From: [EMAIL PROTECTED] Anyone have any opinions , experience putting a crank and rods out of a 454 into a 396 . Just wondering if this is a combo or not , balancing and all ?                      Rick