Topic: Abrasive Blasting Heads???
in Forum: C3 Engines
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macedon, NY - USA
Joined: 7/20/2006
Posts: 367
Vette(s): 68 COUPE 454
HAS MOTION HOOD SCOOP, REVERSED GILLS
ZL-1 FENDER FLARES AND
MOTION REAR SPOILER, LEMAN'S GAS CAP,
BUCKET HEADLIGHTS.
CAN-AM FRONT
RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20,
LOOKS FAST STANDING STILL !!
hi ,
i just tore down my engine, 454, and dissassembled the heads.
the heads have a lot of rust on them, on valve side and outside. (they were sitting in a barn for 8 years.)
my question is, can i abrasive blast them (black beauty) to get all the rust and exhaust deposit off them ? will it hurt anything ??
note that i will plug the valve guides before hand !!
or what do you recommend?
thanks in advance for all the help.
joe
i just tore down my engine, 454, and dissassembled the heads.
the heads have a lot of rust on them, on valve side and outside. (they were sitting in a barn for 8 years.)
my question is, can i abrasive blast them (black beauty) to get all the rust and exhaust deposit off them ? will it hurt anything ??
note that i will plug the valve guides before hand !!
or what do you recommend?
thanks in advance for all the help.
joe
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Duncanville, TX - USA
Joined: 11/8/2003
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Member: NCRS, NCRS Texas, Corvette Legends of Texas
You can blast the heads with no problems, as long as you protect the valve seats. This is best done with the valves still in the heads, or at least a set of old valves. (Unless you are going to have a valve-job done, anyway, in which case it wouldn't matter)
Then, the heads need to be completely washed/cleaned of any remaining blast material.
Then, the heads need to be completely washed/cleaned of any remaining blast material.
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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macedon, NY - USA
Joined: 7/20/2006
Posts: 367
Vette(s): 68 COUPE 454
HAS MOTION HOOD SCOOP, REVERSED GILLS
ZL-1 FENDER FLARES AND
MOTION REAR SPOILER, LEMAN'S GAS CAP,
BUCKET HEADLIGHTS.
CAN-AM FRONT
RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20,
LOOKS FAST STANDING STILL !!
hey joel,
yes i do plan on having a valve job done.
i also believe i will replace the old valves. they were rusted also.
if the seats do get blasted, will the machine shop be able to clean it up?
or will the blast material pit it too much?
(its been over 30 yrs since i've had an engine apart ! so i am re-learning a lot !)
i do like the idea of putting the valves in to protect them.
thanks,
joe
Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Depends a lot on the blasting media used. Glass beads shouldn't hurt the seats, but sand probably will, to some extent. A valve job will involve grinding the seats, anyway, so it shouldn't be an issue, unless you just stay on the seats for too long with the blast nozzle.
I would probably do a little lite blasting around the seats, and then stick the valve back in the hole to do the combustion chambers, just to be safe.
I would probably do a little lite blasting around the seats, and then stick the valve back in the hole to do the combustion chambers, just to be safe.
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Standard Member
Send PM
macedon, NY - USA
Joined: 7/20/2006
Posts: 367
Vette(s): 68 COUPE 454
HAS MOTION HOOD SCOOP, REVERSED GILLS
ZL-1 FENDER FLARES AND
MOTION REAR SPOILER, LEMAN'S GAS CAP,
BUCKET HEADLIGHTS.
CAN-AM FRONT
RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20,
LOOKS FAST STANDING STILL !!
joel,
yea ,good advice.
i'll do it with my old valves in place.
that way i don't need to worry about the inside of the guides also.
thanks again.
joe
yea ,good advice.
i'll do it with my old valves in place.
that way i don't need to worry about the inside of the guides also.
thanks again.
joe
Lifetime MemberGreensburg, IN - USA
Joined: 9/24/2003
Posts: 5188
Vette(s): Previous: 1984 Silver / Charcoal Coupe, 1988 Maroon Coupe / 1989 Artic White Coupe / 2001 Speedway White Roadster / Present:1976 Stingray Black / Black, Auto, 350 slightly modified (355 hp) Luxor Wires Redline Tires. / 1989 Roadster Bright Red...
Joe I see your back to working on that beast (nice car). I take it you got your job thing straightened out. Sure hope so!
Wishing you the best, Tux...
Wishing you the best, Tux...
Standard Member
Send PM
macedon, NY - USA
Joined: 7/20/2006
Posts: 367
Vette(s): 68 COUPE 454
HAS MOTION HOOD SCOOP, REVERSED GILLS
ZL-1 FENDER FLARES AND
MOTION REAR SPOILER, LEMAN'S GAS CAP,
BUCKET HEADLIGHTS.
CAN-AM FRONT
RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20,
LOOKS FAST STANDING STILL !!
hey tux,
good to here from you.
still did not find a job yet. i'm doing everything right now that does not cost money !!!!
getting parts blasted and painted.
as you can see by the forum i'm about to do the heads.
i'm doing abrasive blasting on the side to help bring in some extra money.
might as well use my equipment that i bought.
this forum is great !
very helpful with info.
as you can see joel helped steer me in the right direction on what to do .
hope all is good with you.
do you have your baby on the road yet?
joe
Lifetime MemberGreensburg, IN - USA
Joined: 9/24/2003
Posts: 5188
Vette(s): Previous: 1984 Silver / Charcoal Coupe, 1988 Maroon Coupe / 1989 Artic White Coupe / 2001 Speedway White Roadster / Present:1976 Stingray Black / Black, Auto, 350 slightly modified (355 hp) Luxor Wires Redline Tires. / 1989 Roadster Bright Red...
Really sorry ta hear the market hasen't opened up for ya yet. Hang in there man! I sure hope you can "blast" yourself into a new business.
Yep, I had Tux out this week. (Check out post Tux's 1st ride} He will never be done, there will always be 1 more thing as long as I breath.
Once yer heads are done don't forget to give them a nice hot acid bath that will clean them out good.
Gotta Run Joe take care!
Yep, I had Tux out this week. (Check out post Tux's 1st ride} He will never be done, there will always be 1 more thing as long as I breath.
Once yer heads are done don't forget to give them a nice hot acid bath that will clean them out good.
Gotta Run Joe take care!
in Forum: C3 Engines
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