Also consider linking up with 2. Because engine part turnover in the warehouses is so fast we hold the right to substitute the manufacturer listed with one of equal or greater quality. All hoses must be disconnected. Lots of guys will say the 557 blocks are good to at least 400hp. For example, look at the rear edge of the block to locate the block casting number. We update this page every evening.
Oil is collected in a sump at the rear of the oil pan. Having a shop perform a compression test or leak-down test can also determine whether your engine needs a rebuild. Pontiac made some of the best V-8 street engines from the muscle car era. Wear items were replaced with stock-style parts, and the bushings were upgraded to Polygraphite. We offer a Pontiac 400 stroker kit, a 455 Pontiac stock stroke kit and a Pontiac 455 stroker kit. The 1970 and up Firebird engines received a different motor-mounting boss.
That includes curing time for water-jacket filler and for light cylinder honing during a refresh. Bishop I definitely recommend a look at these transmissions, you've got to have a look. Using an engine crane, attach a chain to the front eye on the water pump and to the rear of the intake manifold. Block Design Your hub for horsepower Get first access to hit shows like Roadkill and Dirt Every Day Join free for 14 days now The basic block is compact and rigid. Any performance enthusiast or competitive racer can easily achieve displacement greater than 460 ci using a typical 400 block and an aftermarket crankshaft.
. I found Sealed Power, Silv-O-Lite, and Clevite 8-relief pistons. Contact us to do a freight claim immediately if damage is noticed. The shift pattern on the smaller truck knobs read L-1-2-3 instead of 1-2-3-4. For me it'd be rods and pistons, likely overbore if it needs it, heads as bill mentioned, ignition and carb tuning, and a cam that added some but didn't change street manners. Click the button below and we will send you an exclusive deal on this book.
A quality machine shop uses it to account for cylinder distortion during machining, but it can be beneficial for home use too. I don't think that shop is really rebuilding your motor enless its a friend of yours or something. Another alternative is to use a plate that is designed to bolt to the intake manifold where the carburetor attaches. Immediately above the code is the engine unit number, which is either six or seven characters. Its robust design allowed immediate adaptability to future displacement increases. And it was one of the reasons that Pontiac created such a well-rounded and fun driving package.
Though external dimensions remained very close to the original 287 design, the V-8 eventually displaced as much as 455 ci by increasing bore diameter and stroke length. As the oil travels forward, it lubricates the camshaft, crankshaft, and left-side lifter bores. This is another subtle upgrade that fits under the stock valvecovers. I recommend removing or at least disconnecting the transmission when removing the engine. All our crank shafts are inspected for cracks and bad journals. The block has the same exterior dimensions whether it is a 326, 350, 389, 400, 428, or a 455. Some of you are wondering why the low price, and that got me thinking too.
The svelte 400 block is easiest identified by its 500557 casting number, and lacks the durability required for high-performance applications. Click on link with each engine to view table for that engine. Once you have it in position and have the motor-mount bolts threaded, you can start connecting the throttle linkage, coolant hoses, electrical harness, and all the other parts. A 4-speed needs at least 3. Finally, buffing and polishing with Trizac 3M products brought up the mirror-like shine. Some things are just worth paying for. Once the engine is back from the machine shop, it requires a degreasing to prep it for paint.
Engine oil should be drained, but the oil filter left in place. The best price I can find right now is from Auto Zone. All our blocks and most of our heads and intakes are featured. Before you endeavor to rebuild your Pontiac engine, you need to honestly and accurately assess your mechanical ability, workshop space, and necessary tools. An alternative process is to remove the transmission before removing the engine. If this sounds like you, I suggest that you rely on a professional engine shop with specific experience in rebuilding Pontiac V-8 engines.