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Rich Biebel · 01-11-2013, 07:19 PM

2 rectangular holes are intake ports and are siamesed and each feeds 2 cylinders...

I worked on them a lot when they were new but can't recall ever seeing those puny ports....

I did replace one brand new block in a car exactly like yours for a porous casting....It leaked water right thru the casting on the drivers side....

I was given a fitted block.....block with pistons/rings.......

Some if I recall right had full size Q-jets but the secondarys were not there...
Then the Dual jet version came along...

Now keep in mind this is all vague memories form the late '70's

The 301 was pretty snappy in a GP but ran out of snap pretty quickly....LOL
The 260 Olds V8 was a total dog.....
I am guessing they had the Metric 200 transmisions and the steep first gear is where the "snap" came from.......
Pinging was a serious issue with these cars....GM was really producing some terrible cars back then and I worked on them everyday in a Pontiac-Jeep-Subaru dealership....

01-11-2013, 07:19 PM	#6
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: Under the index for under a grand! 2 rectangular holes are intake ports and are siamesed and each feeds 2 cylinders... I worked on them a lot when they were new but can't recall ever seeing those puny ports.... I did replace one brand new block in a car exactly like yours for a porous casting....It leaked water right thru the casting on the drivers side.... I was given a fitted block.....block with pistons/rings....... Some if I recall right had full size Q-jets but the secondarys were not there... Then the Dual jet version came along... Now keep in mind this is all vague memories form the late '70's The 301 was pretty snappy in a GP but ran out of snap pretty quickly....LOL The 260 Olds V8 was a total dog..... I am guessing they had the Metric 200 transmisions and the steep first gear is where the "snap" came from....... Pinging was a serious issue with these cars....GM was really producing some terrible cars back then and I worked on them everyday in a Pontiac-Jeep-Subaru dealership.... __________________ Rich Biebel S/C 1479 Stock 147R Last edited by Rich Biebel; 01-11-2013 at 07:24 PM.