What is hard block engine filler?

HARD BLOK WATER JACKET FILLER is a specially formulated, cement-based product with refined, size-graded iron particles combined at an optimum ratio to provide maximum strength, vibration dampening, and heat dissipation required in high performance race engines. Fills the smallest spaces in the water jacket.

What is hard block on a engine block?

Hard Block has the optimum ratio of graded iron for strength and vibration dampening. Its thermal coefficient is nearly identical to cast iron, and also proven to work in aluminum blocks. It won’t shrink or pull away from cylinder walls. It is stable when exposed to water, anti-freeze, and high temperatures.

What does half filled block mean?

A complete fill makes the block unsuited to anything other than drag strip use. But a 1/2 fill or less provides some added support for the cylinders and can be used on the street. A partially filled block will run hot though.

What is the purpose of block filler?

Block filler is a filler material used under epoxy, alkyd and latex top coats for interior and exterior concrete finishes. It is used in masonry preparation on concrete block and cinder block (poured and precast). It is used before top coats so that the surface assumes a flat, smooth and uniform profile.

Can you run a filled block on the street?

Just fill it to the bottom of the water pump holes and it’ll be fine on the street. It stiffens the whole main web of the block as well as absorbs harmonics. Just be sure to fill it before doing any machining.

What is block filling?

BLOCK FILL is a quality, preblended grout suitable for grouting masonry walls. The material requires only the addition of water and is designed to meet CSA A 179-04 (Section 7.2. 3) “Property Speci- fication For Masonry Grout”. USES: BLOCK FILL is designed for difficult to reach projects (ie.

What is block filler?

How can I make my engine block stronger?

Some factory blocks incorporate “girdles” which significantly increase the stiffness of the bottom end of the block. On blocks not using a factory girdle, sometimes an aftermarket girdle or aftermarket steel main caps can be installed to strengthen the block.

What is hard block?

Can you use block filler on brick?

Block filler is a good choice for masonry like bricks, stucco and concrete as it seals the porous surfaces of such material. It fills and covers smaller cracks on a surface easily, including fuzz from drywall. There are many advantages of concrete block filler use.

What do you fill engine blocks with before hard Blok?

Before Hard Blok, many racers and engine builders experimented filling blocks with various substances. Many had some very shocking and ill effects. Way back about 1982, I had a customer’s block someone filled with some sort of industrial equipment, concrete type grout. Like concrete, the substance had been mixed with water.

How does hard Blok water jacket filler work?

HARD BLOK WATER JACKET FILLER is a specially formulated, cement-based product with refined, size-graded iron particles combined at an optimum ratio to provide maximum strength, vibration dampening, and heat dissipation required in high performance race engines. Its coefficient of thermal expansion is identical to cast iron engine blocks.

Can a hard Blok be removed after hardening?

HARD BLOK becomes permanent and cannot be removed after hardening. H & H Specialties, Inc. cannot be responsible for any coolant flow blockage or overheating problems caused by installation of water jacket filler.

When did hard Blok come out on the market?

Hard Blok was not on the market till 1986, so it was back to the high dollar Devcon liquid aluminum epoxy. When I switched to Mammoth motors in ‘84, those 4.625 bore cylinders in the A/R aluminum blocks maintained integrity pretty well, until we started using nitrous in those engines.