Do you know of a Buick Specialist like Jim Burek at Performance Automotive Engines located anywhere in Indiana or surrounding states?I am not aware of any, but that doesn’t mean they are not out there. A clearance of .004 to .005 is good. re: 455 oil pan Hi, the engine swap I am doing is going in my 69 skylark, it has the 350 engine, I have a rebuilt 455, 10to1 compresion ratio FORGED pistons - Crower cam specs 238` @.050"lift-.496" valve lift on 114` lobe center. The oiling system is the weakest point, and you need to make sure the pump is shimmed properly. They had a pretty hot 87 Turbo T. Honestly, any one with modest engine building skills can build a proper Buick engine, they just need to be willing to build it to your specs. Rover SD1 heads are an option, as are Wildcat heads. The internal components for the engine were sourced from Poston Buick, a Buick-only specialty shop.
In great shape. Jim has been building high-performance Buicks for over 20 years and is considered by many to be one of the best. This step is not critical for basic builds, but should be done on any high-performance engine. The following information has been directly complied from original 1970 Buick service manual.

A very thin layer of silicone sealant was used on the timing cover gasket. Jefferson has also written 5 books and produced countless videos. Using a 12-inch long, ½ inch drill bit, the suction side oil galley from the front of the block to the oil pick-up tube was opened up. 144,000 miles. Jim normally gets this 30 mark to 4 or 6 to give a total of 34 to 36 all in by 2200 rpm.30. Be careful; make sure you go in straight so you don’t go off the edge of the cam bearing. The difference between this measurement and the previous measurement is the bearing clearance, in this case .002.12. Use ball end carbide to radius the oil gallery coming up from the oil pump into the passenger lifter gallery. in addition to its extra width, the buick 350 intake manifold has some serious weight to it, tipping the scales at 67 pounds.

Spending the $4,000 asking price was also a big step as that was pretty much all the money I had in the world, being a broke college student. The Sealed Power Hypereutectic pistons from Poston Buick are a welcomed addition in place of the stock dished-out 8.5:1 slugs.32. The Buick 350 has the longest stroke of all the GM 350 engines. A high-performance Buick 350? The long-lived rumors of bad oiling systems (unfortunately true, but easily rectified) and relative scarcity (built from 1968 to 1980) is harder to find than an SBC motor, don’t let that stop you, though, as these motors have quite a bit going for them.Back in March of 2006, we ported the heads for this motor. My book “How to Build Max-Performance Buick Engines” is a great place to start.I have a 70 Buick skylark with 350 2 bbl.. engine won’t hold oil pressure anymore..so I’m getting rebuilt..$2000 to get it machined and $750 for rebuild kit. I’ve done more or less all the same stuff to my 350 and i’ve only spent about 2500 so far.I would disagree. In order to tone down the low RPM effects of the cam, we used a set of Rhoades lifters which feature a high-bleed off rate under 2000 RPM.

Buicks used rope seals front and rear.
In 2003, he began writing tech articles for magazines, and has been working as an automotive journalist ever since. Just going back stockIt depends on the machine work you are having done. and a quick measurement tells us that the block hasn't already been bored 30 over. As it turns out, the 350 could have been rebuilt without boring or turning the block as it was in really good shape, but in order to get the tight clearances for high-performance use, the machine work was performed. Make sure to resuse the factory windage tray. The little Buick also features a deep-skirted block, higher nickel content, external oil pump and is 100 pounds lighter than the small-block Chevy.

It is a good idea to install the timing chain at this point as there is very little room between the rods and the cam. Oil passage now lines up with the bearing hole. The 2, 3, 4, 5, and 7 cam bearings should be positioned at 4 o’clock.19.

Using Sealed Power Hypereutectic pistons, final compression for the motor came in at 10.1:1.

That’s crazy” Well, in reality, the only part that is crazy is how little aftermarket support there is for these small-block powerhouses. Then just a month after buying the car, while cruising to Oklahoma City, on a date with my future wife no less, the stock Buick 350 lets loose at 70 MPH. here's another good sign. I would absolutely look into the oiling mods we spec and either groove the block for the cam bearings of buy grooved cam bearings. The hole depth is 4 inches. Jim drills these to 5/16” to match the drilled block passage.10. The progress of the rebuild had reached a point where it would be sitting for a while anyway, so out it came, ready for a rebuild.For muscle cars, the rebuild process offers 2 options, go stock and keep it all original or pump up the power and add some ponies to the mix. We spent the next weekend dropping in the motor.


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