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t-100
Glenn Towery

(30 posts)

Registered:
09/09/2009 10:55PM

Main British Car:
1974 1/2 MGBGT 3.9 Rover V8

Rover / Buick 3.5 3.9 4.2 4.0 4.6 PORTED HEADS
Posted by: t-100
Date: February 10, 2015 11:37PM

I had 2 set of Rover heads ported for me 15 years ago, before my engine man passed away 12 years ago. I have had them sitting in a closet, on the top shelf, in a house, out of the way. Well it has come time to move them for I am after fuel mileage not just power & a ported head will cost you 1 to 2 MPG. Comp. port job & yes I know you can not do much to the Buick-Rover heads but we took a damaged rover head & cut it up to see where we had enough alu. to make the ports as good as you can. The heads are 1 set of the 3 row head bolt (90-93) & 1 set of the 2 row of head bolts (4.0 & 4.6) with the big intake valve & the 1.350 exhaust valve. The man that ported these for me, did port work for over 45 years. $850. + a good set of core rebuild able heads + postage. If you need more info. send me your Ph. # & I can call you or for USA CALL ONLY you can call my cell @ 302 734 1243 Thanks Glenn


noelcurrie
Noel Currie

(1 posts)

Registered:
02/09/2015 02:50PM

Main British Car:


Re: Rover / Buick 3.5 3.9 4.2 4.0 4.6 PORTED HEADS
Posted by: noelcurrie
Date: February 15, 2015 05:19PM

Where are you located? I'm in Canada, Vancouver Island, BC.
Looking to build a high performance 'stroker' 300 for my TR8.


tr8todd
Todd Kishbach

(359 posts)

Registered:
12/04/2009 07:42AM

Main British Car:


Re: Rover / Buick 3.5 3.9 4.2 4.0 4.6 PORTED HEADS
Posted by: tr8todd
Date: February 16, 2015 09:29AM

Don't bother with the expense of the stroker. You will get the same thing out of a 4.6 and save thousands. Seen way too many TR8s with strokers go boom, and then the broke owners opt for a cheaper 4.6 only to end up with basically the same peak HP numbers. Instead of spending money on the stroker, spend it on a programable FI system. With good heads, you can get somewhere around 330 at the flywheel with decent drivability. Don't go chasing every last HP.


MGBV8
Carl Floyd
Kingsport, TN
(3765 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

authors avatar
Re: Rover / Buick 3.5 3.9 4.2 4.0 4.6 PORTED HEADS
Posted by: MGBV8
Date: February 16, 2015 12:28PM

Todd is a wealth of information. I don't think he is trying to scuttle Glen's sales. Even if Noel decided to go with a 4.6, he will still need a great set of heads.

Noel this is from Glen:

I am in Dover DE. Send me a ph.# where I can call you with what we have
built in big motors. Thanks Glenn



Edited 1 time(s). Last edit at 02/17/2015 10:55AM by MGBV8.


t-100
Glenn Towery

(30 posts)

Registered:
09/09/2009 10:55PM

Main British Car:
1974 1/2 MGBGT 3.9 Rover V8

Re: Rover / Buick 3.5 3.9 4.2 4.0 4.6 PORTED HEADS
Posted by: t-100
Date: February 18, 2015 04:18PM

Noel, The Rover heads that I am selling will not work on the stroker motor, will have way too high of compression.


tr8todd
Todd Kishbach

(359 posts)

Registered:
12/04/2009 07:42AM

Main British Car:


Re: Rover / Buick 3.5 3.9 4.2 4.0 4.6 PORTED HEADS
Posted by: tr8todd
Date: February 18, 2015 07:37PM

Many of the stroker engines out there now are done by offset grinding the 4.6 crank to yield something like 297CI. All I was alluding to in my first post was there really isn't much sense in trying to chase every HP by going from 4.6 to 4.9. Worked heads with larger valves are essential for any of the Rover engines over 4.0. The heads listed in this thread sound like a pretty darn good deal to me. I've seen several sets of heads with larger valves and nice port work end up costing $2500 by the time all was said and done.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5812 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Rover / Buick 3.5 3.9 4.2 4.0 4.6 PORTED HEADS
Posted by: BlownMGB-V8
Date: February 19, 2015 02:48AM

Also I think if you buy a completely assembled set of TA heads they come out to about $2500 unported.

Jim



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