engine block filler

[Ortie666]

.070, pff bore it, and if it blows up these blocks are a dime a dozen.. get a new one.. try it again.. thats hotrodding.. dragsters dont make 8000Hp because the teams asked questons b4 they tryed sonthing stupid. good luck

[sharkey]

keep in mind here guys, ARI bores there block .120 over to achive the 3.4l, he is only boring the block .070 over. yes .060 makes people twitchy. the only way i would go .070 over is if i had the block sonic tested first to determine the thickness of the cylinder walls before you bore it. this will allow you to figure out how much you have left.

i dont think hardblocking is going to give you that much extra strength.

[rx191]

i have used hard block in a few engines i have built, one was a full fill engine that was for drag racing the other 3 engines where street/ race engines and where only filled to the bottom of the freeze plugs. all 3 engines where less noisy and 1 one of them a 400 chevy ran cooler. i have not tried it on a 3x00 mtor yet, but i see no downside to patialy fillinh the block, but i agree overboring one of these engines that much is excessive. and filling the block will not help unless you fill it all the way and that is a very bad idea on a street motor or anything short of a drag engine.

[Ortie666]

my buddys dad has a 565ci bowtie block in his chevette, and he filled his it with concreate and he can still drive downtown cruise all nite do a couple passes, then come home and never overheats it. (or runs out of gas, HAHA) If there is sufficiant oil cooling that cools the cyl walls enough to be safe

[Doubt_Incarnate]

a "professor overdrive" article, filling a SBC to the bottoms of the freeze/core plugs, yaddah yaddah blah blah. "short fill" is what they called the kit.

[Doubt_Incarnate]

summit actually has a kit to half or partialy fill a SBC. they claim stronger bottomends, and better cooling.

[TurboZ24]

"has anyone ever tried this hardblok filler thing"

I thought block filler was used to completely fill the coolant passages, for those building motors only for drag racing.

[fivepointhustla]

You should have the block resleeved so the pistons will fit. It is already not a good idea to bore the 2.8/3.1 sleeves to a 3.4 then you add boost, why waste the money on something unreliable? Maybe you have cash to throw around then again you wouldn't be messing with this engine.

[bjornmk1]

has anyone ever tried this hardblok filler thing ???

I am seriously considering it cause my block(2.is gonna
be bored over to 3.57 inch.

I know that ARI has bored (stroked) a 2.8 to 3.4L.
so that would be achieved by stroking to 3.1L(3.1crank/pistons)
and a rebore of 3 millimeters !!

mine will be rebored to 3.57 so taht would be 2 millimeters
butt with boost

considering a block filler as an extra safety margin

anyone??