Topics

76

Restoration / Markings on Bolts and how to do a "batch" clean

« on: May 28, 2008, 07:54:28 PM »

Is there a listing of bolts and attending  markings that are on original bolts somewhere out there??? I found a couple of buckets of ole bolts from yesteryear and guess what,  I want to figure where these son a mah guns came from re. 67 - 69 Camaros and put'em on a spreadsheet to know exactly what I've collected...  What would be a way of cleaning all these suckers at once... If I brought them to a shop, would the acid bath clean these sufficiently, or, is there another way? On a lot of bolts I see TRW on the heads, why??  Might seem like a moot question, but, I kinda like this stuff....

Thanks!!!  T.

77

Originality / Hydr.cam 151 specs

« on: May 21, 2008, 07:40:10 PM »

Anyone have the definitive specs on this 3863151 cam ex Hi-Po 327 RPO L-79???
Looking for the opening and closing point intake and exhaust valve events..  I have a Chevrolet Power Manual in front of me presently, i.e.  4th Edition Section 2 page 17 and as stated for intakes: 40 degrees  BTC and 100 degrees After Bottom  Center...
Exhaust valve specs are opening 92 degrees BBC opening point and closing point is 48 degrees ATC...
Is this correct or ??   Thanks!!!  T.

78

Originality / Rocker Arms SBC with "O" on the end

« on: April 30, 2008, 05:28:11 PM »

Small block rocker arms with the "O" on them... I have heard that these are better than the more common "V" type...   Why???  I have maybe 15 of these O arms and cannot see any difference..
Maybe it is my vision, eh???   Ted

79

General Discussion / 1.94 or 2.02 over the counter heads is there a???

« on: April 30, 2008, 11:23:52 AM »

I have a non-matching set of over the counter hump heads numbered #3861492 dated K30 1 and 3973370 dated D23 0... Did these automatically come with 1.94s or 2.02s???  Is there a quick way to tell just by looking at them without measuring? How much distance is between the intake valve and exhaust valve of a 1.94 head vs distance between 2.02 intake valve and the exh. valve??? Both heads are press-in studs and I don't see any "factory grind relieving" in the combustion chambers.. Accessory bolt holes are already there...
Thanks!!! 

80

Originality / Radio / 8 Track 01BPBT1

« on: April 26, 2008, 12:32:50 PM »

Any idea if this unit came from Camaro / Chevelle???   Looks like everything is there with original wiring harness and speakers...  Paid 5 bucks for it, but, I don't know what it is from, or, if it even works....   Thanks!!!!   T.

81

Decoding/Numbers / How are Q-Jets judged ???

« on: March 06, 2008, 04:09:49 PM »

Are Q-Jets judged to be correct for a certain car/engine combo by the vertical numbers either 7 or 5 or 4 alongwith the plant codes  and Julian dates located on the driver's side of the main body only???   When Rochester /Carter originally built the carbs, was there a certain baseplate  generic to a specific application or could they haved used a baseplate for many applicatioons??
I am looking carefully over the outside and there are raised numerals in circles on the carb base. There are also serial numbers when I turn over the top of the carb... 

Do the judges just look for a correct numbered and Julian date carb or do they really get into it re. hangers / metering rods / etc etc...  Reason I am asking this is, that I have Q-Jets from the 60's and 2 of them are seized.  Really don't want to screw up the throttle bores/ blades by forcing them. What do the name carb re-builders do in this situation???  I imagine they could apply a base from another carb to the "good-numbered" unit... 

I am not trying to deceive, otherwise I would not ask this question on a public forum. Thanks!!

82

Decoding/Numbers / Two 8.5 ten bolt diffs need help with codes and what years are represented

« on: July 10, 2007, 05:16:37 PM »

I am having difficulty identifying  a couple of 10 bolt  8.5 inch diffs.
The coding on the first diffy  is CG G 2572 alongwith  87890 and 12345
The second differential's codes are::  PF G 091 alongwith  1254333 and  either C301 or G301.
Thanks in advance!!!!    Ted

83

Decoding/Numbers / engine block 3969854

« on: March 26, 2007, 04:38:22 PM »

I have an  engine block scripted,  3969854 T031867 CE060689.  What is this pls, and where does this belong??  Hopefully Vette or whatever???  Thanks in advance!!!   Ted