Engine/heads?

ZASX · December 27th, 2006, 08:27 PM

Need Help Figuring Out What Engine Ive Got Its Marked3955582the Heads Are Marked Cfd,409,147,112,113 Thanks If Anyone Can Help

Redog · December 27th, 2006, 09:59 PM

The 2 being the last number means it's a 1972 motor and 395558 is the casting on the Olds 350 motors from 1968 to 1972.

The heads will have a large number by the #1 plug wire. That is what heads it has

ZASX · December 28th, 2006, 08:06 AM

The Number On The Heads Are #7 Are These Any Good? Thanks Again

Redog · December 28th, 2006, 08:18 AM

5, 6, and 7 heads from that year are all pretty good.

There are mixed reviews thought, some will say 5 are the best, others will say the 7. 6 are the rare ones

texasred · December 28th, 2006, 04:01 PM

5 is supposedly the best flowing stock heads. 7s are the first year that "should" have hardened valve seats for unleaded fuel. I've got ported 7s and they do quite nicely.

C.J.

ZASX · December 28th, 2006, 05:42 PM

Thanks Everyone For The Info On The Engine&heads,where Is A Good Place Too Order Parts?1972/442 Thanks Again

texasred · December 28th, 2006, 06:04 PM

What kind of parts?

Most everyone is good...except for Mondello and a couple of "Brothers". (I can't say the name of the "Brothers" company because they have taken legal action against some folks who got screwed by them and then had the audacity to complain about it on Oldsmobile boards.)

Just say away from Mondello and the "Brothers" (whose company I can't publically name).

C.J.

redoldsman · December 29th, 2006, 11:36 AM

Depending on what you are looking for, you should be fine with the 7 heads. The 7 heads are from a 71 and 7a's are from a 72. The 7a's definitely have hardened seats but I am not sure about the 7's. Both heads have small combustion chambers which is what you want. The 72 used dished pistons to lower the compression to 8.5. The use of flat top pistons will raise the compression which will be offset in part by the thicker head gaskets available today. Hope this helps.

December 27th, 2006, 08:27 PM	#1 (permalink)
ZASX Registered User Join Date: Dec 2006 Posts: 54	Engine/heads? Need Help Figuring Out What Engine Ive Got Its Marked3955582the Heads Are Marked Cfd,409,147,112,113 Thanks If Anyone Can Help

December 27th, 2006, 09:59 PM	#2 (permalink)
Redog Alero Chapter Secretary Join Date: Aug 2006 Location: Newtown, PA Posts: 1,145	The 2 being the last number means it's a 1972 motor and 395558 is the casting on the Olds 350 motors from 1968 to 1972. The heads will have a large number by the #1 plug wire. That is what heads it has __________________ Me 2000 Alero running 14's 2005 Nissan Altima (her's) 1967 Olds 330 motor sitting on a stand 1985 Delta 88 w/1968 350 rocket ( MURDERED )

December 28th, 2006, 08:06 AM	#3 (permalink)
ZASX Registered User Join Date: Dec 2006 Posts: 54	Heads The Number On The Heads Are #7 Are These Any Good? Thanks Again

December 28th, 2006, 08:18 AM	#4 (permalink)
Redog Alero Chapter Secretary Join Date: Aug 2006 Location: Newtown, PA Posts: 1,145	5, 6, and 7 heads from that year are all pretty good. There are mixed reviews thought, some will say 5 are the best, others will say the 7. 6 are the rare ones __________________ Me 2000 Alero running 14's 2005 Nissan Altima (her's) 1967 Olds 330 motor sitting on a stand 1985 Delta 88 w/1968 350 rocket ( MURDERED )

December 28th, 2006, 04:01 PM	#5 (permalink)
texasred Tom Servo's Stunt Double Join Date: Apr 2004 Location: San Antonio, Texas Posts: 824	5 is supposedly the best flowing stock heads. 7s are the first year that "should" have hardened valve seats for unleaded fuel. I've got ported 7s and they do quite nicely. C.J. __________________ Dad said, "Sometimes you read Job...sometimes you ARE Job!"

December 28th, 2006, 05:42 PM	#6 (permalink)
ZASX Registered User Join Date: Dec 2006 Posts: 54	Parts Thanks Everyone For The Info On The Engine&heads,where Is A Good Place Too Order Parts?1972/442 Thanks Again

December 28th, 2006, 06:04 PM	#7 (permalink)
texasred Tom Servo's Stunt Double Join Date: Apr 2004 Location: San Antonio, Texas Posts: 824	What kind of parts? Most everyone is good...except for Mondello and a couple of "Brothers". (I can't say the name of the "Brothers" company because they have taken legal action against some folks who got screwed by them and then had the audacity to complain about it on Oldsmobile boards.) Just say away from Mondello and the "Brothers" (whose company I can't publically name). C.J. __________________ Dad said, "Sometimes you read Job...sometimes you ARE Job!"

December 29th, 2006, 11:36 AM	#8 (permalink)
redoldsman Proud Viet Nam Veteran Join Date: Dec 2006 Location: Rowlett, TX Posts: 480	Depending on what you are looking for, you should be fine with the 7 heads. The 7 heads are from a 71 and 7a's are from a 72. The 7a's definitely have hardened seats but I am not sure about the 7's. Both heads have small combustion chambers which is what you want. The 72 used dished pistons to lower the compression to 8.5. The use of flat top pistons will raise the compression which will be offset in part by the thicker head gaskets available today. Hope this helps.

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