=09Leave the cam bearings alone unless they really do need to be
replaced (usually they don't)If you do replace them, get precission
bearings.If you don't get them be prepared to spend an extra hundred bucks
on line boring the regular ones.
=2E..Art
On Mon, 29 Sep 1997, Truxtun Southworth wrote:
> Dave Houser wrote:
> >=20
> > Just dropped of my 67 BGT original block and am having it rebuilt. I
> > want to bore it out to 1840 for a little more power without sacrificing
> > reliability. Heard too many horror stories from folks who have nothing
> > but overheating problems from boring out too much for power gains. Want
> > all the parts balanced, of course.
> > What else should I request be done at this time?
> > Appreciate all advice on this matter.
> >=20
> > Cheers,
> > Dave Houser
> Hi Dave,
>=20
> I think the key word here is reliability and it sounds like your on the=
=20
> right track. I'd suggest a slightly hotter cam, maybe something like=20
> quarter race. Don't forget to replace the cam bearings. You already=20
> have a dual timing gear but I=B9d certainly replace it all, the chain, th=
e=20
> tensioner and the gears. Check the rods for length and straightness. =20
> Check the bearing surfaces for true ovalness, they may need to be recut. =
=20
> New main bearings, new rod bearings.
> I'd put some time and money into the head, besides grinding the valves,=
=20
> replace the rocker shaft and the bushings. Over the summer I asked the=
=20
> list for advice on doing a valve job specifically the benefits of=20
> polishing the ports. I got back a lot of good advice and can send you=20
> copies of the posts if you send me a fax number. You might also talk to=
=20
> the folks at Brit -Tek, they spent a lot of time with me over the phone=
=20
> when I did my engine and they gave me some good advice especially when=20
> it came time to select a cam.=20
> BTW it sounds like the GOF was fantastic,sorry we had to miss it. See=20
> you on the 18th.
>=20
> Tuck=20
> 70 MGB hers
> 55 MGTF mine & hers
>=20
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