Hi all,
I am putting all my 186 parts onto a 3.3L blue block. I am using the blue crank and pistons, but Im wondering if I can use my 186 cam. It is after market street/race spec.
Thanks
will my after market 186 cam fit my 3.3L engine
Started by
_glennhailstone_
, Feb 08 2015 06:46 PM
22 replies to this topic
#2
_Muzzy_
_Muzzy_
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Posted 08 February 2015 - 07:20 PM
Cam will interchange between blocks no probs
#3
_Bluejinx202_
_Bluejinx202_
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Posted 08 February 2015 - 08:13 PM
From my experience, a wild 186 cam will seem pretty tame in a 202. I reckon about 10deg@50 more needed for the extra stroke
#4
_glennhailstone_
_glennhailstone_
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Posted 09 February 2015 - 04:01 PM
Ok thanks, I'll have to look into that.
#5
_threeblindmice_
_threeblindmice_
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Posted 09 February 2015 - 05:08 PM
Are the cam gears the same ?
#6
_Muzzy_
_Muzzy_
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Posted 09 February 2015 - 06:15 PM
Are the cam gears the same ?
Std one is fibre cam gear
Preferred is alloy cam gear
The crank is steel regardless
Don't use straight cut
#7
_Bomber Watson_
_Bomber Watson_
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Posted 09 February 2015 - 06:26 PM
Pfft, straight cuts rule 
#8
EunUCh
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Posted 09 February 2015 - 06:26 PM
and don't try to mix and match imperial and metric gear pitch,if they still make both?
ie,make sure the gears are a set...new or used.
#9
yel327
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Posted 09 February 2015 - 06:39 PM
Make sure it isn't actually a proper 186 cam or the 202 rod bolts will hit the cam. Has to be a cam designed for a 202 to fit in a 202, which most aftermarket cams have been since the 70's.
#10
S pack
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Posted 09 February 2015 - 06:50 PM
Are the cam gears the same ?
TMK all aftermarket alloy cam timing gears are the same for 138, 149, 161, 173, 179, 186, 202. Note: Straight cut timing gears not included.
Edited by S pack, 09 February 2015 - 06:52 PM.
#11
_threeblindmice_
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Posted 09 February 2015 - 07:41 PM
Thanks Dave , it was just something a railway mechanic said to me thirty years ago , about the late ones being different , and it is one of the things I never forgot .
#12
S pack
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Posted 09 February 2015 - 07:48 PM
Thanks Dave , it was just something a railway mechanic said to me thirty years ago , about the late ones being different , and it is one of the things I never forgot .
I don't know if Red, Blue & Black genuine GMH cam gears are the same so they may be a different kettle of fish to aftermarket gears.
Edited by S pack, 09 February 2015 - 07:48 PM.
#13
_Bomber Watson_
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Posted 09 February 2015 - 08:28 PM
They look the same at a quick glance, though i've never actually thought to check them really closely, and all the stock cams i've come across that had fibre gears on them are currently in landfill so cant check....
Cheers.
#14
_oldjohnno_
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Posted 09 February 2015 - 08:53 PM
Pfft, straight cuts rule
If I wanted to listen to an incessant whining noise I'd bring the missus along....
#15
SA EH
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Posted 09 February 2015 - 09:40 PM
Ha ha ha! Like...
#16
_Bomber Watson_
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Posted 09 February 2015 - 10:17 PM
If I wanted to listen to an incessant whining noise I'd bring the missus along....
I have no missus, so its an occasional/recreational thing
Cheers.
#17
yel327
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Posted 10 February 2015 - 10:24 AM
The straight cut gears or the woman thing?
#19
_Lazarus_
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Posted 10 February 2015 - 12:10 PM
I had a missus with straight cut gears once.
Ended up getting some earplugs.
#20
_LS1 Taxi_
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Posted 11 February 2015 - 12:06 AM
I ran alloy straight cuts on my old boat 202....couldn't hear anything offensive (but in the boat the engine is mounted backwards so the crank gear was constantly covered in oil so I assumed this quietened it down?)
It sounded nothing like other straight cuts I've heard...
It sounded nothing like other straight cuts I've heard...
#21
_glennhailstone_
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Posted 11 February 2015 - 02:12 PM
Oh so your still alive oldjohno, I was a bit worried about you for a minute there.
#22
_Bomber Watson_
_Bomber Watson_
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Posted 11 February 2015 - 07:55 PM
Must be pressing the end of his years surely.....
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