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Just thought some may like to talk about the old chev engines in out holdens. about anything at all.
How about the first 283 and all what they were and were not, even the opposition ford at the time was it better ?
to the last HQ 350's.
A lot of people thought a lot of the old 283 in it's day, but was it that good ?
Some think the 307 is just as good as a 327, how can it be ?
People use to be very passionate about their views year gone by have things changed.
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There is a SBC in a GMH complianced and Holden badged vehicle after HQ, plus another in a GMH complianced vehicle. |
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I put a 283 in a HR ex cab many years ago. Left it cab colours with the big 4&1/2 inch wheels. Put a ridiculously big cam in the thing ..... slow off the line but saw 8200 on the tacho quite a few times. The little 283 never let go, but the 6 cylinder diff did, big time.
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...i rebuilt a 283 GM engine when i was a pimply headed apprentice panel beater back in 1978.... ...the Chev 283 had a nodular iron crank and the Pontiac engine had the forged steel one....you can tell by the grinding marks (as compared to the casting line) down the middle of the crank...so i was pleased i had the Pontiac crank... ...a 125 thou overbore bought her up to 292 cubic inch and with a set of old Chev Corvette ''Power Pack'' heads she would be a giant killer....in the same way as the 302 powered Z28 Camaro's have that revving ability... ...i overdone the raised pistons, and with shaved heads and a decked block.....especially with the ''Duntov pink'' high lift cam.....she just wouldn't turn over (valves hitting the crowned pistons)... ...i've still got that engine all wrapped up and one day i guess i'll sort her out properly....cheers fellas Edited by user Monday, 8 July 2013 6:10:23 AM(UTC)
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quote:
Originally posted by HK1837
There is a SBC in a GMH complianced and Holden badged vehicle after HQ, plus another in a GMH complianced vehicle.
Bedford truck, chev C20,1998 suburban 350 ?
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quote:
Originally posted by castellan
quote:
Originally posted by HK1837
There is a SBC in a GMH complianced and Holden badged vehicle after HQ, plus another in a GMH complianced vehicle.
Bedford truck, chev C20,1998 suburban 350 ?
Yes, 1979 GMH assembled and compainced Chev C20 and C30, plus the Holden Suburban 5.7 (these were a GenII so still a SBC). They aren't a proper Holden though, the last Holden and Statesman with a SBC as you said was a HQ. |
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quote:
Originally posted by detective
...i rebuilt a 283 GM engine when i was a pimply headed apprentice panel beater back in 1978....
...the Chev 283 had a nodular iron crank and the Pontiac engine had the forged steel one....you can tell by the grinding marks (as compared to the casting line) down the middle of the crank...so i was pleased i had the Pontiac crank...
...a 125 thou overbore bought her up to 292 cubic inch and with a set of old Chev Corvette ''Power Pack'' heads she would be a giant killer....in the same way as the 302 powered Z28 Camaro's have that revving ability...
...i overdone the raised pistons, and with shaved heads and a decked block.....especially with the ''Duntov pink'' high lift cam.....she just wouldn't turn over (valves hitting the crowned pistons)...
...i've still got that engine all wrapped up and one day i guess i'll sort her out properly....cheers fellas
They are good engines. To be a 292 though on a 283 bore is only a 60 thou overbore. 125 thou over is 302ci. All 283's were forged crankshaft, I don't think cast cranks appeared until late 1967 when the large journal engines appeared. All the Chev 283 and small journal 327 i've ever bought have all been forged cranks. Those powerpacks are good things, similar chambers and ports as the 461 Fuellies, just smaller valves. I've got a few pairs that came on old 283 and 327 engines. |
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The HQ 350 engines what are they if we are looking at what the yanks had this engine in their cars.
We have the 1st type in 1971-2 our HQ
The 2ed type in 1973 now with this one the yanks polution controls must see retarted cam timing i would think and are the heads EGR ? 175 nett HP ?
And the 1974 only auto 350 with different heads again what is she in the USA.
Do we import them from Canada, made in Mckinnon ? so she would be in mainly Canadan made cars ?
What do the yanks call our type of ADR laws for their cars ?
Yank EGR came in 1972 did it not and a lower lead fuel ? full unleded in 1975 ?
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I don't think manual engines in HQ changed, they should be the same all the way through. It was the auto engines that changed during HQ. The later were 250hp rated, early were 275hp. I'm pretty sure they were all Canadian engines in HQ. I don't recall seeing an EGR valve type inlet manifold on any of these, but I guess the last of the HQ 350 engines will be ULP engines, they had 882 cast heads on them which were used as unleaded heads with flame hardened seats in the US. I have a complete inlet manifold off a late HQ 350 in the shed, the one with the vertical mounted coil bracket, too hard to go look at it but I don't think it has an EGR valve on it. |
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