whats the best small block for my car?

86cutlass supreme · 10-04-2006, 06:55 PM

whats the best small block for my car?i own a 1986 oldsmobile cutlass supreme coupe.it has a 3.8L v6 engine.the car has a full frame and no a/c.its rear wheel drive with a limited slip dif.i was also wondering whats a good posi rear end that will fit ?if u could help me out it would be GREATLY appreachated

Redog · 10-05-2006, 03:56 PM

1972 Olds 350 Block, casting 395558

texasred · 10-05-2006, 05:58 PM

A 72? If you are going to be that specific, at least pick something with smaller dish pistons and smaller combustion chambers.

Almost any 350 will do you great....or 403.

Check out www.oldspower.com

C.J.

Redog · 10-05-2006, 08:00 PM

The 350's past 76 (I think it's 76 and up) are not as strong, block wise. In the late 70's they started using "webbing" to make the blocks

1968 to 1972 blocks are great for a build up, but the best combo is the 1972 block with the 7A heads. That's if your going to build it up, if just for a daily driver that will see very little track time, any Olds 350 will do

texasred · 10-06-2006, 02:56 AM

Windowed mains '77 and up. 395558 cating was used 68-76. #5 heads (68-69) are the best flowing of the small block heads.

C.J.

10-04-2006, 06:55 PM	#1 (permalink)
86cutlass supreme Junior Member Join Date: Oct 2006 Posts: 2	whats the best small block for my car? whats the best small block for my car?i own a 1986 oldsmobile cutlass supreme coupe.it has a 3.8L v6 engine.the car has a full frame and no a/c.its rear wheel drive with a limited slip dif.i was also wondering whats a good posi rear end that will fit ?if u could help me out it would be GREATLY appreachated

10-05-2006, 03:56 PM	#2 (permalink)
Redog Alero Chapter Secretary Join Date: Aug 2006 Location: Newtown, PA Posts: 831	1972 Olds 350 Block, casting 395558 __________________ Me 2000 Alero running 14's 2005 Nissan Altima (her's) 1985 Delta 88 w/1968 350 rocket ( MURDERED )

10-05-2006, 05:58 PM	#3 (permalink)
texasred Super Moderator Join Date: Apr 2004 Location: San Antonio, Texas Posts: 807	A 72? If you are going to be that specific, at least pick something with smaller dish pistons and smaller combustion chambers. Almost any 350 will do you great....or 403. Check out www.oldspower.com C.J. __________________ Home of the 1971 Cutlass Supreme convertible Super Karate Monkey Death Car.

10-05-2006, 08:00 PM	#4 (permalink)
Redog Alero Chapter Secretary Join Date: Aug 2006 Location: Newtown, PA Posts: 831	The 350's past 76 (I think it's 76 and up) are not as strong, block wise. In the late 70's they started using "webbing" to make the blocks 1968 to 1972 blocks are great for a build up, but the best combo is the 1972 block with the 7A heads. That's if your going to build it up, if just for a daily driver that will see very little track time, any Olds 350 will do __________________ Me 2000 Alero running 14's 2005 Nissan Altima (her's) 1985 Delta 88 w/1968 350 rocket ( MURDERED )

10-06-2006, 02:56 AM	#5 (permalink)
texasred Super Moderator Join Date: Apr 2004 Location: San Antonio, Texas Posts: 807	Windowed mains '77 and up. 395558 cating was used 68-76. #5 heads (68-69) are the best flowing of the small block heads. C.J. __________________ Home of the 1971 Cutlass Supreme convertible Super Karate Monkey Death Car.

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