Dans55
Newbie
Posts: 41
Reg: 03-03-22
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11-07-23 01:11 PM - Post#2863940
Finally got the head off and in the lower left corner bottom of the head gasket there is a 1/2" wharp. That took a load off my mine. Damn those cast iron heads are heavy. Just typical carbon on the piston tops and under the head. Question, the pistons are not flat top but valve indentations. Did Chevy use those type of pistons for their engines back in 1970?
Still debating if to change cam and heads. I'm sort of leaning towards that.
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 Shepherd
Valued Contributor
Posts: 3442
Loc: Lake George, NY
Reg: 11-11-15
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11-07-23 03:02 PM - Post#2863944
In response to Dans55
Are they dished also?
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Dans55
Newbie
Posts: 41
Reg: 03-03-22
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11-07-23 06:19 PM - Post#2863949
In response to Shepherd
3/4 of the piston top,where the valves are.
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Shepherd
Valued Contributor
Posts: 3442
Loc: Lake George, NY
Reg: 11-11-15
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11-08-23 05:24 AM - Post#2863955
In response to Dans55
Low compression design, usually about 8.5, pretty common in those years.
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Dans55
Newbie
Posts: 41
Reg: 03-03-22
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11-08-23 06:41 AM - Post#2863961
In response to Shepherd
You think a new cam and aluminum heads should beef up the torque and hp. I got to pull the oil pan off as its dented anyhow, to see if it's 4 bolt. Can't see doing all this work for a 2 bolt. Dent is right under the oil pump. Hope that's not damaged.Glad I didn't pay much for this beater. Don't care how it looks, just want the complete drive line to work and sound good. Have a good lopey rumble.
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