Categories FAQ

Readers ask: Buick aluminum heads?

Are aluminum heads worth the money?

Yes they are worth it. Pretty much every aftermarket head is worth a good power increase over any stock head. I like the aluminum heads since they are easier to port, repairable, and give a nice weight reduction. They usually are only a few hundred more than the iron heads.

What is the advantage of aluminum heads?

Aluminum heads will dissipate heat faster. This allows for higher Compression Ratios with less risk of Detonation. The cooler head also delivers a cooler air/fuel mixture to the combustion chamber. Cooler air is denser and can make more power.

How much power will aluminum heads add?

Those heads suck. And good aluminum heads like TFS170 should raise you 100 hp on a carbed motor with the right cam.

Does aluminum heads increase HP?

Aftermarket aluminum heads usually make more power because they are a better-flowing head design than stock. Plus, you can modify the aluminum heads much more easily.

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Do aluminum heads crack?

Cracks in aluminum heads are most often repaired by TIG welding (though pinning also works with small accessible cracks). The first step in welding aluminum is preparing the crack. The head must be clean, grease-free and dry before grinding out the crack.

Should you paint aluminum heads?

Yes. No, the heads do not dissipate large amounts of heat. Cast iron is poor at heat transfer, aluminum is way better, as such, you are way ahead of the game with aluminum heads anyway.

Can you put aluminum heads on a cast iron block?

If you are installing aluminum heads on a castiron block, the difference in expansion rates can cause sealing problems. Because of this, composite gaskets seem to work best. Just make sure whatever you use is applicable in an aluminumhead/ironblock situation.

Are aluminum engines reliable?

If properly designed, an aluminum engine should be every bit as strong and durable as an iron one, Walker said. The cylinder bores, in which the pistons move, are lined with cast-iron sleeves, so the wear characteristics are no different than those of a cast-iron block. “There is not a longevity issue,” Walker said.

What is better cast iron or aluminum block?

Castiron versus Aluminum

On the downside, castiron blocks are heavier. While aluminum provides benefits for weight reduction, it’s a softer material that on its own would wear quickly and excessively as a cylinder material in direct contact with castiron, ductile-iron, steel or other piston-ring materials.

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How much horsepower will Edelbrock heads add?

After installing the Edelbrock Performer heads, the 302 blasted out 383 hp and 364 lb-ft of torque, for a gain of 78 hp peak to peak. Near 6,000 rpm, the difference in power was an astonishing 92 hp. The name Edelbrock conjures up all manner of performance components, and for good reason.

How much horsepower do performance heads add?

Depending on your cam, you can gain anywhere from 40-70hp. Cam and heads can gain you 100+hp.

Can you put 400 heads on a 350?

400 heads on a 350 block is a great way to increase your midrange and top end power. The swap is a direct bolt – on deal, you just need to be sure to use 400 head gaskets when you do the swap.

How much HP will Vortec heads add?

The original answer was related to modifying the heads to accept more valve lift. Our original answer combined the Chevrolet Hot cam with a set of these Vortec heads. Our estimate then and now is around 350-375 horsepower. Your question relates to porting the Vortec heads to improve the flow, which is a great idea.

Do cylinder heads increase horsepower?

Improved throttle response, ‘fatter’ power and torque curves, and peak horsepower can all be generated through selecting the right cylinder heads for the engine combination.

What are the best small block Chevy heads?

Choose the Best Aluminum Head for Small Block Chevy

  • DNA Motoring CYLH-SBC-350 – Cheapest Option.
  • Auto Dynasty SBC 200cc – Best Combination of Price & Value.
  • Racing Head Service (RHS) 11011 – Most Powerful Aluminum Head.
  • Edelbrock 5089 – Best for Quality.
  • DNA Motoring LEPOW-038 – Best for Reliable Materials & Build.
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