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Old 02-12-2025, 11:55 AM
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Default New TRW springs for SD455

Here ya go if you need them.

Stated in the TRW catalog as being good to .450” lift.
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Old 02-12-2025, 02:34 PM
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TRW catalog says the VS952 are for the RAIV engine.

NO springs for 455 S.D in the 1991 TRW Catalog No. X-3001-1 .

FWIW

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Old 02-12-2025, 02:45 PM
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You have a newer catalog.
Mine is from 1986 and since then the part number changed.
This catalog does not list that spring.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
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Old 02-12-2025, 02:52 PM
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The specs on these are 107 on the seat and 317 open @ .520” which is I guess why the part number changed and yes would be a RA4 spring, but would work for the SD455 and probably provide like 280 something in open pressure.

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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
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Old 02-12-2025, 03:28 PM
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Probably a nice set of springs

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