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04-10-2012, 11:00 AM
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#1 |
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Registered User
Join Date: Nov 2009
Location: ortonville michigan
Posts: 151
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454 engine
my 454 engine blew a head gasket. my mechanic cleaned it all up, and found out the block was cracked in 3 places, thus no good. he pulled the pistons, ect. and said the pistons were 60 over. some friends have said that was to big. what will this do to the life of the engine? pro and cons of 60 over? thanks for the help!
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04-10-2012, 11:36 AM
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#2 |
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Registered User
Join Date: Nov 2011
Location: fayetteville nc
Posts: 10,338
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Re: 454 engine
Depends what year block. The older blocks are supposed to have a higher nickle content. 40 and 60 over are standard bores for early big blocks. The only problem I know of with a 60 over 454 is that the cylinder walls start to get thin. The water jackets run between them. The year of the engine is the important thing in my opinion, but others might have more to say on it.
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1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual http://67-72chevytrucks.com/vboard/s...d.php?t=519869 1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide http://67-72chevytrucks.com/vboard/s...d.php?t=619024 1964 Short bed trailer |
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04-10-2012, 12:03 PM
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#3 |
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Registered User
Join Date: Feb 2012
Location: pleasant valley--placerville ca
Posts: 3,039
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Re: 454 engine
had a 1978 454 60 over in my nomad and no problems
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1961 chevy K10 my build is------------61K10 build |
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04-10-2012, 06:56 PM
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#4 |
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Registered User
Join Date: Aug 2008
Location: greensboro nc
Posts: 673
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Re: 454 engine
ran .060 454 with 1/4" stroker (496 ci) 14:1 8000 rpm shifts no problem.
I agree the year makes lots of differance here if its much past 75 I would be skeptical. You can 454 blocks at fair price with little searching. Better bet would be used block bored to .030 or .040,KB pistons your rods and crank. Biggest question is what are you going to be comfortable with? |
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04-10-2012, 08:34 PM
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#5 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: 454 engine
454's can go to 080-.100 over without any real problems
that .o60 never never land thing is a smallblock// bigblocks are a very different animal
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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04-10-2012, 09:16 PM
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#6 |
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My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: 454 engine
468s are everywhere. Had one in my own stable with no issues.
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04-11-2012, 09:26 AM
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#7 |
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Active Member
Join Date: Oct 2006
Location: Ohio
Posts: 1,643
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Re: 454 engine
Agree - 060 on a big block should not make you think twice
Motors fail for many reasons
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1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles  18.5" x 31" Hoosier Pro Street Radials  ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree 
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04-23-2012, 01:54 PM
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#8 |
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Registered User
Join Date: Nov 2009
Location: ortonville michigan
Posts: 151
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Re: 454 engine
just a update. i get my truck back tues-wensday. my mechanic said he ended up putting a 1979 block in it. he bored it to 60 over so my parts will fit without any problems. total cost was 2000. have heard thats a good price for a rebuilt engine. thanks for all the help and ideals, now lets cruise!
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04-23-2012, 02:01 PM
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#9 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,930
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Re: 454 engine
Including the 454 block i'd say that is a steal!
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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04-24-2012, 02:11 PM
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#10 |
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My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: 454 engine
As long as things were done "correctly" that is a good deal.
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