Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
in what model holden did they first use alloy bridges on the rockers ? cheers
|
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,114
Thanks: 1 times
Was thanked: 219 time(s) in 199 post(s)
|
HI John.
HT 253/308 was the first Holden engine to use alloy rocker bridges. HQ 173/202 was the first 6.
Dr Terry |
If at first you don't succeed, just call it Version 1.0 |
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
thanks dr terry can you put 173 202 alloy bridge rockers on a 186 head its just that i have a 12 port head of a 186 and the 202 rockers easier to set if not no drama just a thought cheers
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 13/01/2006(UTC)
Posts: 303
|
The only difference between a 186 and a 202 head is the rockers...If you were close by i could swap you a 202 head for your 186 head.
|
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,898
Thanks: 1 times
Was thanked: 558 time(s) in 533 post(s)
|
You can put the later rockers on an early head. You just have to buy the kit to do it, but im not sure if anyone still makes them.
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,898
Thanks: 1 times
Was thanked: 558 time(s) in 533 post(s)
|
You can put the later rockers on an early head. You just have to buy the kit to do it, but i'm not sure if anyone still makes them.
_______________________________________________________
If we all had the same (good) taste, who would buy all the Ford |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 3/08/2007(UTC)
Posts: 1,902
|
186 head, big spark plug,
"kidney chamber"
202 Head, small spark plug that pertrudes the chamber.
- dont mix your push rods.
A1 Bogan. |
Old holdens brought on the spot, quick decision, cash paid. |
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 3/08/2007(UTC)
Posts: 1,902
|
186 head, big spark plug,
"kidney chamber"
202 Head, small spark plug that pertrudes the chamber.
- don't mix your push rods.
A1 Bogan. |
Old holdens brought on the spot, quick decision, cash paid. |
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,114
Thanks: 1 times
Was thanked: 219 time(s) in 199 post(s)
|
quote:
Originally posted by adam PERTH
186 head, big spark plug,
"kidney chamber"
202 Head, small spark plug that pertrud |
If at first you don't succeed, just call it Version 1.0 |
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 3/08/2007(UTC)
Posts: 1,902
|
i thought all big spark plug heads had the "kidney chamber"?
A1 Bogan. |
Old holdens brought on the spot, quick decision, cash paid. |
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,898
Thanks: 1 times
Was thanked: 558 time(s) in 533 post(s)
|
Terry is correct. Where the head is used to set the compression ratio, the small chamber is off the high compression variation, and the big chamber off the low compression variation. This only applies to some engines though, like the 173 (I think this is |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
