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  3. The "Group Buy" for the 1967-68 Deluxe Steering wheel recasting is now officially "Open". Now is the time to start sending in the wheels. The latest date that the wheels must be received by Kochs is 31 March 2025 The cost for each wheel is $750. The only "up front cost" is your shipping the wheel. If you send in more than one wheel, each additional wheel will cost $700. Shipping and insurance to Kochs and return shipping will be extra. You will be contacted by Teresa to make payment for the wheel(s) and return shipping and insurance when your wheel(s) is complete. The shipping will be factored on your delivery address and insurance. I will be sending the contact information all of you have sent me to Teresa at Kochs. Send in your wheels, horn pad and hardware and paint color sample if applicable. Please include: First and Last Name Shipping Address Phone number email address V8Buick "Member Name" Wheel Color (SEE THE BOTTOM FOR WHEEL COLOR) Pease read the "shipping to Kochs" below. There are two addresses. One for USPS Mailing One for FedEx and UPS shipping You can use USPS/Mail, UPS or FedEx to send in your core. Use the appropriate address depending on what service you use to ship. If you use USPS/Mail ship to: Koch's P.O. Box 959 Acton, CA 93510 Attn: Teresa If you use UPS or FedEx ship to: Koch's 7650 Soledad Canyon Road Acton CA 93510 Attn: Teresa Kochs Contact: Teresa (661) 268-1341 customerservice@kochs.com Wheel Color If you wheel is Black, you can list that in your information you send in with your wheel. For colored wheels, please contact Teresa about specifics for wheel color if you do not send in a color sample to match. Please contact me if you have any questions. Thank you to everyone for your participation in making this a reality. And "Thank You" Jim Weise, for allowing and facilitating this project! Michael .................... to remove this notice, click the X in the upper RH corner of this message box
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'72 - '80 SBB heads

Discussion in 'Small Block Tech' started by rygelca, Feb 13, 2018.

  1. rygelca

    rygelca '72 GS 350/auto

    Hi all.

    I’m new to the board, but not so new to my '72 GS 350 (bought it in '94). It’s basically stock except for a 2-1/2 manifold-back exhaust and Flowmasters. I’ve been getting the itch to do a mild top end rebuild project and gain some much needed HP. Nothing crazy since it sees light street use only.

    One area for improvement I’m considering is targeted porting/polishing of the cast heads. I recently picked up a spare set (casting no. 1243452) which I understand spanned several years. Since they came cheap I’m not afraid to try porting these on my own, once I learn more about how to (and how not to) for the performance improvements I’m looking for.

    Before I disassemble and have these cleaned/magged, I’d like to know more about these heads:

    1. Their production spanned '72 - '80 from what I’ve read. Are any years of this particular casting code more desirable?

    2. How do I know what year these particular ones were produced? Each has “A•5” marked on the top left side as well.

    3. How do I know if they are smog-equipped, and if they are, how do I “un-equip” them? ;-)

    4. In general, is it worth me working on this particular set, or are there other more desirable (so harder to find) SBB heads that I should be searching for?

    I’m not much interested in modifying the heads on my car because a) it’s together/drivable now, b) if I sell the car I’d like to give the next guy the opportunity to restore it, and c) in case I mess up the heads I won’t spoil b) by doing so.

    Thanks for your help!
     
  2. alec296

    alec296 i need another buick

    I would say 72-75 would be better then later. As per Michael Phillips from am&p , from a porting aspect. 72 has 8.2 compression. So shaving the heads some for a bump in compression would not be bad, although a piston change for compression increase would be better. But if your bottom end is good, and you have extra heads, why not. Matt had great luck with big valves ,porting and the crower level 3 cam advanced 4 degrees in a low compression 68 350.
    Quadrajet Power Performance built carb, and a trishield performance torque converter. With distributer recurve. He ran 14.00 on street tires with 3.42 gears. Lots of tire spin . Might as well go with what works. He did the oil modifications and TA front cam bearing.
    Stock rockers, new valve springs. Should not have to unequip emissions as early is just egr. Make sure your block does accept late heads or plug ports in Center of heads
     
  3. rygelca

    rygelca '72 GS 350/auto

    Got it, and thanks for the advice. Still unsure of how to identify the casting date on these buggers. Motor has just 35k on it and I have no reason to suspect the bottom needs attention (yet).
     
  4. alec296

    alec296 i need another buick

    Matt has 125000 on his engine before he did top end . I would think your engine is barely broken in.
     

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