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Holden HP Blocks
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Smitty Offline
#1 Posted : Friday, 24 August 2007 9:53:13 AM(UTC)
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What is the difference between ordinary holden 6 cyl blocks and 6 cyl HP blocks. I am getting a lot of different information. What is the correct information?
ALWAYS HOLDEN TOGETHER
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JBM Offline
#2 Posted : Friday, 24 August 2007 9:59:43 AM(UTC)
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HP was used to distinguish 2 engine sizes on the production line and was replaced by the CID at a later time.
The blocks are not "High Performance" blocks as some people think although some of the sellers on Ebay may beg to differ.

James

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You only have to be in front at the end of the race.
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Smitty Offline
#3 Posted : Friday, 24 August 2007 10:07:45 AM(UTC)
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what does the hp stand for. what is the difference between the blocks or engine setups?
ALWAYS HOLDEN TOGETHER
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JBM Offline
#4 Posted : Friday, 24 August 2007 10:11:05 AM(UTC)
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Im not sure why "HP" was used, maybe it was an in joke or maybe someones initials, the blocks are not special in any way and would have had the same spec as the later blocks with the correct number on the side, excepting any across the board changes to en
You only have to be in front at the end of the race.
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Smitty Offline
#5 Posted : Friday, 24 August 2007 10:25:15 AM(UTC)
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i was told the blocks are the same, but the hp eng had a steel crank shaft insted of a cast iron crankshaft. there must be some difference. what size eng came with a hp block? 179,186 etc
ALWAYS HOLDEN TOGETHER
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HK1837 Offline
#6 Posted : Friday, 24 August 2007 4:12:34 PM(UTC)
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All pre 1967 (about April/May from memory) red Holden 6's had a forged steel crank. The HP means nothing other than 179. It was there to distinguish it from 149, which also had a forged crank. The early 308's in HT also had HP on the side to distinguish i

Edited by user Friday, 24 August 2007 10:05:56 PM(UTC)  | Reason: Not specified

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If we all had the same (good) taste, who would buy all the Fords?
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HK1837 Offline
#7 Posted : Friday, 24 August 2007 4:12:34 PM(UTC)
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All pre 1967 (about April/May from memory) red Holden 6s had a forged steel crank. The HP means nothing other than 179. It was there to distinguish it from 149, which also had a forged crank. The early 308s in HT also had HP on the side to distinguish it

Edited by user Friday, 24 August 2007 10:05:56 PM(UTC)  | Reason: Not specified

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If we all had the same (good) taste, who would buy all the Fords?
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adam PERTH Offline
#8 Posted : Saturday, 25 August 2007 12:23:17 AM(UTC)
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agree with Byron
I should be pointed out that the HP only came out in the EH
The EH had 179HP and 149 hi and low comp
These 149 DID NOT have 149 cast into the side - differentiated by prefix
hence blank red motor = 149
HP red motor = 179

Old holdens brought on the spot, quick decision, cash paid.
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Dr Terry Offline
#9 Posted : Sunday, 26 August 2007 1:40:40 AM(UTC)
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quote:
Originally posted by adam PERTH

All hydromatic EHs ran with the HP, along with factory manual premiers
(Body 235M)
If at first you don't succeed, just call it Version 1.0
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Dr Terry Offline
#10 Posted : Sunday, 26 August 2007 1:40:40 AM(UTC)
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quote:
Originally posted by adam PERTH

All hydromatic EH's ran with the HP, along with factory manual premiers
(Body 235M)
If at first you don't succeed, just call it Version 1.0
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peter_flane Offline
#11 Posted : Sunday, 26 August 2007 7:19:33 AM(UTC)
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I threw one away about 8 years ago so I could put a big block 202 in. It had 40 thou overbore. The 202 was only 20 thou over and a bigger motor, so the HP went in the scrap metal bin.
If it is old or rare - Cut it! http://www.ehlimo.com.au/
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