The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Marcos - B30 Blown Head Gasket 140-160

posted by  marcos volvo on  Tue Apr 28 22:43 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Feb 16 02:41 CST 2011
[RELATED]

I have a 1971 Marcos which has the B30 6 cylinder motor, to which I have fitted a B30E head (higher compression) and a mild cam (much the same as a "D"), but still running on Stromberg carbies (Yes, I know I need to change to SUs).

Well, over the Easter weekend I took the Marcos out to the local race track for my car club sprints - great fun, but ended up blowing the head gasket (5&6) turning it into a steam engine!!!. This may have in part been caused by it running hot - the plugs indicated it had been running too lean at full throttle, which was not apparent at normal road speeds.

Anyway, I can get a custom made copper or copper composite manifold made locally (I am in New Zealand), but was considering whether to upgrade the head bolts at the same time. I was thinking of ARP studs, but can only find kits avialable here and not of course for a B30 Volvo! I have seen mention of them on the forum so I assume they are available in the US.
At the same time I would like to add double valve springs as I also see this is recommended if running at higher revs.

Your thoughts and ideas on where to purchase the studs and valve springs would be much appreciated.

Thanks
Brian





USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.