After this we check our main and rod bearing clearances with a bore gauge and micrometer (plastigauge is very inaccurate which is why we do not use it) to get the appropriate clearances which will ultimately lead to prolonged engine life.Every block has its deck surfaced to ensure straightness.Each block is bored and honed with a deck plate to exacting specifications to provide the correct piston to cylinder wall clearance.Then all of the pistons rings are file fit to each cylinder to provide the correct ring endgaps which allows you to make more power with less leakdown. The motor is finally assembled and torqued down to factory specifications. We then check the crankshaft endplay and rod side clearance to make sure they are in spec.A stock sleeved block is good to about 700 horsepower.A Darton sleeved block is good for over 1000 horsepower. At Speed Force Racng, we understand that putting together an engine together correctly is crucial to the sucess of any build. We have been building engines for 10+ years for all sorts of different vehicles. We know how to do it right the first time so that you can be cetain you are getting a high qaulity product that will give you years of trouble-free operation. We also have the ability to coat pistons and bearings with anit friction and thermal coatings, cryogenically treat rods, pistons, blocks, etc……..Powder coating and polishing is another option that we offer for those that want to go beyond the norm. Please call us to discuss pricing The SFR short blocks are short blocks only. They do not come with heads, cams, oil pan, oil pick-up, waterpump, chains, rollers, tensioners or timing covers! Please specify which year engine you have so we can get you the right block(unless you supply us with a core). Failure to do so will leave you with a block that is not correct for your application and there is no returns! Our core policy on short blocks is: We must recieve a good condition short-block. If there is any damage to the block/girdle,crank or piston squirters your core charge will not be returned. We have the right to determine what would be considered "good condition".if you are unsure of what condition your motor is then we would suggest paying the core charge and allowing us to source the parts.
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