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#1
01-31-2022, 03:31 AM
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Block prep before filling
I am going to fill my block to just under the freezeplugs.
How have you cleaned the coolant passages succesfully before filling at home? I would like to not block the drain plugs on the block, best method? |
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#2
01-31-2022, 09:22 AM
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my iron block was dry (cooked, shot peened exterior), then i used a stiff plastic tube adapted to the Entral Vacuum to suck up any loose rust/scale.
Any time the engine was apart, the block fill integrity seemed to appear excellent, well-wetted to the block. |
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#3
01-31-2022, 10:29 AM
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Recommended....
Rokblock Professional Engine Block Filler Designed to expand into all interior voids. Helps prevent cylinder wall cracking and keeps cylinder walls round which will improve ring seal. 98% cured within 24 hours. Will not separate from block, even after many years of racing. 25 lbs. pail. https://www.competitionproducts.com/.../#.YffyF-rMKUk .
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
| The Following User Says Thank You to Steve C. For This Useful Post: | ||
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#4
01-31-2022, 12:32 PM
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I really don't know that I would even bother to fill the block up to just the bottom of the freeze / core plugs, you want to fill up to just below the water pump holes to add good strength to the bores.
Have the bores been sonic tested ? If so how do they check out?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#5
01-31-2022, 12:47 PM
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I wonder if you could use muriatic acid or evapo-rust to clean the inside better.
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#6
01-31-2022, 01:13 PM
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I was thinking about evaporust as well. Anyone tried?
I have not had the bores sonic tested. Filling to the water pump holes, how will that effect cooling? Street engine. Would that leave any space for coolant at all..? Engine will be 4.160 bore 4.5" stroker. 400 block. |
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#7
01-31-2022, 09:04 PM
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how will that effect cooling?
Discussed many times. Here one of many threads on the subject.... It actually makes the floor of the water passage smoother and assists flow and heat transfer heat better. And that area down at the very bottom gets very little water circulation anyway on a un-filled block (some suggest a 'dead' area). It is correct it will not effect water temps to any great degree after filling and some actually report it runs cooler. https://forums.maxperformanceinc.com...ght=block+fill .
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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