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The hydraulic system is designed (via caliper piston diameters) such that the front brakes carry 65-70% of the braking loads, and need to dissipate twice as much heat as the rear calipers. Under heavy braking, the fronts will always be hotter than the rears.

If you want that information for your '69, you won't find it in the '69 Chassis Service Manual - it's in the '69 Chassis Overhaul Manual; as Lars noted, you'll need to buy one - most of the vendors have it, or check on eBay.

The heat riser valve shoud be in Section 6, and the rest of the exhaust system is in Section 8.

Make sure the latch is lubricated, the sliding lock plate moves freely, and the spring is in place. If the latch releases, the lock plate isn't fully engaged under the head of the striker bolt on the hood; loosen the lock nut on the hood striker and turn the striker bolt counter-clockwise...

Is the body properly located fore-aft on the new frame? The dimensional relationship between the steering gear attaching holes and the body mounting holes is exactly the same on all '63-'82 frames; the gap between the end of the column shaft and the end of the steering gear input shaft shouldn't...

If you don't have any fluid leaks and a full system bleed doesn't change anything, you need a new master cylinder; with no air or leaks in the system, the only cause for the pedal going to the floor is fluid bypassing the piston seals in the master cylinder. :beer

For reference, with stock GM parts, there were two setups, only one of which was ever used on Corvettes. Corvettes used "bent-finger" diaphragm clutches (in both 10.5" and 11" sizes), with the "short" (1-1/4" overall) throwout bearing. Most passenger cars and trucks used "flat-finger" diaphragm...

I'll disagree with that. "Today's gas" isn't any different than "yesterday's gas" - only the numbering system on the pump has changed; today's 93 octane is the same as yesterday's 96-97 octane. I've built (and still own) plenty of carbureted small-blocks with factory 11:1 compression ('67...

The front edge of the front bumper on a midyear is 48" forward of the centerline of the carburetor. I've always put the car on jackstands, removed the left front wheel, and pulled/installed from the side. :beer

Unless the gauge system has been converted to some aftermarket electronic configuration (unlikely), the internal bourdon tube/links/axle assembly that operates the needle shaft is stuck or jammed. Have the gauge restored or replace it. See Dave Zuberer's .pdf below on how the oil pressure gauge...

What intake manifold did you buy?

I've used the plastic drywall anchors many times for non-structural attachments in fiberglass, and they work great. For attachments that are more highly stressed, Corvette Central sells a fiberglass hole mount repair kit (their #131125) that includes pre-cut steel repair plates with two holes in...

What you had made is a reproduction window price sticker, not an invoice. The dealer wholesale invoice Mike posted is the original GM document that was mailed to the dealer the day the car was shipped from the plant; the MSO (Manufacturer's Statement of Origin) was in the same envelope, which...

That's why the engine block is the only item on the car that's judged in a defined, sequential manner, with a "go" or "no go" at each step, and the stamp pad is last, with minor deductions compared to the first two steps: 1. The block casting number is judged first - if it's not correct, block...

The little spring segments are the "Marcel" portion of the clutch - they are actually slightly curved, fit inbetween the friction material and the hub spiders on both sides, and they "cushion" clutch engagement; race clutches don't have the Marcel elements, and that's why they're "grabby" when...

Don't know if you both noticed, but this thread went dormant six years ago. :beer

If the flywheel is the original GM (casting #3729004), it's drilled for (and will only accept) a 10.5" clutch; the later GM 168-tooth flywheels were drilled for an 11" clutch (the bolt hole patterns are different for 10.5" and 11" clutch pressure plates). Or, it might have an aftermarket...

If your starter has horizontal bolts into the front of a GM bellhousing (not vertical bolts into the starter pad on the block), you have a 14"-diameter 168-tooth flywheel; that's the only size flywheel that was ever used on C1's. If it had a 12-3/4"-diameter 153-tooth flywheel, the starter...

I always apply anti-seize to the upper shell of the bushing before re-installing the crossmember to the "sombreros"; if it has to come out again years down the road, it'll fall out by itself. :)

Do you realize you're responding to a thread that went dormant 5-1/2 years ago?