NOS lifters 523270
 

Have 8 of these NOS lifters in perfect condition.

Any reason not to use these in a stock Pontiac engine even though they are for an Olds V8 307,350,403?

523270 HL62

Nope!

Reason?

I have to check back,I think I have a set of them in my 421 HO engine right now.Tom

I used the Olds 5232780 in my 421.Dont know what the diff is.Tom

I have a set of NOS Pontiac lifters ... when I checked them very thoroughly with my mics ... that were more accurately machined than any of the aftermarket lifters I had.

I agree........these NOS Olds lifters I have are really nice pieces.

I'm just curious what the real difference is between the 5232750 (not 523270 as I stated above) and a Pontiac specific lifter such as a 5232265.

Dataway- are the ones you have 5232265?

Buick Oldsmobile Pontiac V8 HT951 Valve lifter are 100% Rockwell tested. .842 or 27/32 dia Buick 1964-84 Oldsmobile 350-455 1965-79 Pontiac 326-455,
Interchange
TO BE USED AS A GUIDE ONLY - Application Must Be Verified


AE CLEVITE
H951
DANA/PERFECT CIRCLE
2131674
DYNAGEAR/MANLEY
ML951H
ELGIN
HL1951
ENGINETECH
L951
FEDERAL MOGUL/SEALED POWER
HT951
GM
17085567
GM
5231355
GM
5231360
GM
5231615
GM
5232265
GM
5232320
GM
5232375
GM
5232385
GM
5232570
GM
5232575
GM
5232675
GM
5232750
GM
5232755
GM
5232780
GM
5232895
GM
5232900
MELLING
JB951
MORESA
H304
PIONEER
VT951
STANADYNE
12304
TRW
VL49
WOLVERINE
HL1951

Not sure how accurate a site called yoyopart.com is but they show the Olds lifter 5232750 crossing to the following GM lifter numbers including the Pontiac specific 5232265 lifter and it's replacement 17085567........

OE 10785567
OE 17085567
OE 5231355
OE 5231360
OE 5231615
OE 5232265

Who was the manufacturer of these lifters. TRW? Was TRW related to Federal Mogul through merger. I see a lot of Sealed Power/Federal Mogul lifters on E bay and wonder about their quality from back in the 90s.