GM valve spring # 10212811

rseibenick · 12-22-2009, 08:21 PM

Need infomation on GM valve spring # 10212811 . Wanting to know installed height and lbs. and open height and lbs. Also coil bind . Any ideas , on how to obtain this infomation. Thanks

Rich Biebel · 12-22-2009, 08:36 PM

"Part # 10212811
Spring Type: Single spring. Outside diameter: 1.25". Pressure @ installed height: 80# @ 1.70". Solid height: 1.20". Average Rate (lbs@in): 256. Retainer P/N: 10241744. Valve Seal Kit P/N: N/A. CT350/350, 350HO engines"

Not much of a spring for anything more than a street car from the specs shown. A performance type stock spring like the old Z/28 type had about 105lbs on the seat.....80 is very close to stock non performance stuff.

rseibenick · 12-23-2009, 07:33 PM

Thanks for the info.

12-22-2009, 08:21 PM	#1
rseibenick Member Join Date: Dec 2002 Posts: 160 Likes: 22 Liked 20 Times in 7 Posts	GM valve spring # 10212811 Need infomation on GM valve spring # 10212811 . Wanting to know installed height and lbs. and open height and lbs. Also coil bind . Any ideas , on how to obtain this infomation. Thanks

12-22-2009, 08:36 PM	#2
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,275 Likes: 25 Liked 510 Times in 200 Posts	Re: GM valve spring # 10212811 "Part # 10212811 Spring Type: Single spring. Outside diameter: 1.25". Pressure @ installed height: 80# @ 1.70". Solid height: 1.20". Average Rate (lbs@in): 256. Retainer P/N: 10241744. Valve Seal Kit P/N: N/A. CT350/350, 350HO engines" Not much of a spring for anything more than a street car from the specs shown. A performance type stock spring like the old Z/28 type had about 105lbs on the seat.....80 is very close to stock non performance stuff. __________________ Rich Biebel S/C 1479 Last edited by Rich Biebel; 12-22-2009 at 08:45 PM.

12-23-2009, 07:33 PM	#3
rseibenick Member Join Date: Dec 2002 Posts: 160 Likes: 22 Liked 20 Times in 7 Posts	Re: GM valve spring # 10212811 Thanks for the info.