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Topics - rally

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Decoding/Numbers / Chevy BB cranksahft cast dates?
« on: March 08, 2012, 12:08:08 PM »
Guys do you know if Chevy cast dates on there crankshafts at the foundry? I have a BB crank and it looks like a raised letter 69 near the top of the front throw? Did they do this?

Decoding/Numbers / 6223 factory Chevy BB Crankshaft
« on: March 06, 2012, 12:32:19 PM »
Guys did Chevy use the factory 6223 forged crank in the 396- 375 horsepower engines in 67-thru 69 years? I have one, excellent standard crank and want to build a clone L89 396-375 engine. Any help is grewatly appreciated.

Originality / 69 Z28 coil bracket- Notched?
« on: January 09, 2011, 04:35:32 PM »
I purchased a 69 Z28 Original ignition coil bracket which has the correct angle to clear the cowl induction air cleaner. My question is, does the coil bracket suppose to have a notch on the top side? My bracket is a soild piece without this notch. Do i have the correct one? According to one person on ebay who is selling one with the notch, this persons claims if this coil bracket isnt notched it can cause ignition problems. I never heard of this, was the notched bracket use on BB Cars only? I am under the impression that the 69 Z28 Coil Bracket wasnt notched, please help me out. Thank You.

Gentlemen i have a pair of used original 1969 Z28 Front calipers. The casting numbers on both are 5483633 but are not identified as Left or Right on the castings. Is this normal, did these factory calipers have a L for Left or R for Right cast into them. Or am i alright here with no identifications at all?

Originality / 69 Z28 Distributor Hold Down clamp
« on: December 31, 2010, 02:07:47 PM »
Gentlemen what did the factory Z Points distributors use for a hold down clamp? Was this clamp used thru out Chevys production line? I see one on ebay that looks like the right one. Any help would be greatly appreciated. Thank You

Originality / Original 69 Z28 Master cylinder- no power brake booster?
« on: December 26, 2010, 01:10:38 PM »
Gentlemen i have a question about my original brake master cylinder on my 69 Z28. When i bought this used Z28 it came with no power brake booster but has a original master cyliner casting number 5468309 which is a correct Z28 piece.  This car has front disc brakes. Whats going on here, why no power brake booster. Did some Z28s not have these installed with the front disc brake setup? All the brake lines going to the master cylinder are original and never have been changed or modified. Could this car have been a drum brake unit and someone may have installed these disc brakes? My Z28 is currently setup for drag racing. Could have someone removed this power brake booster because of low vaccum on the drag engine and wouldnt operate the booster correctly? I am puzzled here. Any input is greatly appreciated.

Decoding/Numbers / 69 Z28 Front disc brake calipers factory numbers?
« on: December 12, 2010, 09:48:14 PM »
Guys can you help me out. What is the 69 Z28 front disc caliper factory assembly part number they used. Can i find a good used pair from someone with the correct numbers. Do you know where i could buy a good used factory pair? Would ebay be good to find a set of them?

Originality / 69 Z28 Camaro rear brake drums?
« on: December 02, 2010, 07:29:49 PM »
Guys what style rear brake drum did Chevy use on the 69 Z28? Was it the smooth sided drum or the finned style? Also did the factory use a balance weight on there drum along with a GM stamped code or ID? Thank You

Mild Modifications / 12 Bolt brake line T-Block on 69 Camaro Z28?
« on: November 30, 2010, 11:01:37 PM »
Guys i am stumped here? What did Chevy do on their 69 Camaro 12 brake line T-Block? Did they use this T-Block to connect the brake lines on the 12 bolt? If so where could i purchase one? Thank You

Originality / 69 Z28 Original Cap and Rotor- Special Factory Parts?
« on: November 30, 2010, 05:30:44 AM »
Guys did the 69 Z28 Camaro come from the factory with a special distributor cap and rotor? If so was it the D 309R Cap and D 308R Rotor? Or did they use just the factory cap and rotor like the other passengers cars came with back then? Thank You.

Decoding/Numbers / Chevy BB Oil Pump number 3863598
« on: November 26, 2010, 04:25:21 AM »
Anybody know what this pump belongs too? Anything special with this pump

Originality / 1969 Z28 Original Ignition coil ?
« on: November 20, 2010, 09:32:58 PM »
Did the 69 302 Z28 Engine use a special ignition coil for their points distributor. Was it  a special coil with better voltage? If not what did they use.

Decoding/Numbers / 69 Z28 Factory Oil Pan Numbers?
« on: November 12, 2010, 09:21:39 PM »
I have a factory 69 Z28 oil pan i am going to use. I found these numbers stamped near the front of the pan and read #0405. Anybody know what these numbers stand for? Was the Z pan stamped ever? The timing chain cover has the date code stamped in the middle front section so i was wondering about the oil pan?

Originality / 69 Z28 Distributor vacuum pod number?
« on: October 20, 2010, 02:28:50 AM »
Anybody know whats the number stamped on the vacuum pod thats correct for the 69 Z28 Distributor? Is it B1? Anyone know the correct number, original vacuum pod?

Originality / 1969 Z28 Used Original Distributor worth?
« on: October 19, 2010, 07:15:00 PM »
Gentlemen whats a good used original dated 69 Z28 distributor going for these days? Any idea whats a good price for one of these? Its all there, the correct cam, vac pod. What would you pay?

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