Buick 300 heads ported polished big valves

Started by mgoodrich, October 12, 2010, 06:45:17 PM

Previous topic - Next topic

mgoodrich

I have a set of aluminum Buick 300 heads that have been ported & polished with the largest valves possible installed. All work was performed by Mark at D&D Fabrications. Never installed, was building project engine and kids happened. I also have Rover 3.9 block with crossbolted mains, ford 255 pistons, custom rids, buick 300 crank, edelbrock intake and carb.

$2500 on heads

If interested in anything else let me know. can send pics.

Phillip G

Mike,

I am trying to locate a 3.9, with crossbolted mains - block - maybe even with the original crankshaft - if also available.

My problem is that I then must fill the cylinders with 8 each,  T Top or Stove Top cylinder liners and then re-bore to the 3.5 size.

The SCCA GT2 rules specify that my RV8 Rover V8 must be a 3.5 litre V8.  There is a SCCA "NO NO" on the 3.9.  Too bad, for the liners and the machine work can be very expensive.

What will you need for the 3.9 block and where is it located ?

keep them on the track,

phillip g

mgoodrich

I will have to think about separating the block from pistons, rods, and 300 crank. Block is machined out to fit the 255 pistons.

c.mike.goodrich@gmail.com

joe_padavano

I would be interested in the crank, rods, and pistons if you decide to separate.  What size are the mains on the crank?  I'd be putting this rotating assembly in a 4.6 block.  Have the crank/rods/pistons have all been balanced already?

Wotland

Hi could you post pics of heads ?
Do you have flow bench datas ?
Thanks

tr8todd

Phillip, would a 3.9 block that has the bosses for the cross bolts but haven't been drilled yet work for you?  I might have a couple of those blocks here with bad sleeves.  I've seen those blocks drilled to accept the cross bolts on stroker engine builds.  Just a thought.  I have a pile of dealer takeout motors, and could check the engine codes and see if any are the late 3.9s with the bosses.

roverman

Phillip, Can you de-stroke a 3.9L(no cross bolts) back to 3.5 L. and be legal ? You know, lotsa rpm. ? As far as I know, Huffaker used stock cast cranks in their GT-1 engines, and reved the piss, out of them.  Good Luck.roverman.

mgoodrich

head.jpg
head4.jpg

Do not have flow data. All work was done by Mark at D&D fabrications the best aluminum v8 shop I know of.

Phillip G

Mike,

Gosh, these are beautiful cylinder heads !  And since Mark Lagrue at D & D Fabrication Company made them, they are the best in the land.  NO DOUBT !  

The SCCA GT2 GCR rules even allow such modifications.  At a later date and in another (amateur) racing season, a set of cylinder heads like these would be a dream on a 3.5 Rover 4 bolt main block. Even with flat top pistons I bet the dyno would reveal (at the rear wheels) over 250 HP.

keep them on the track

phillip g

Moderator

1971 MGB GT V8
Buick 215 w/ Rover heads, custom EFI & crank-fired ignition.
Custom front and rear coilover suspensions.

mgoodrich

Don't know the squish area. I just told Mark to build me the best heads while still retaining reliability. If you are seriously interested I can measure the area. email me c.mike.goodrich@gmail.com


willbowen

Mike;

    If you still have these heads what do you need for them.  Thanks.  William
727-667-0995