Cylinder Head Packages and Rates

Note: All prices are for listed modification package items only and do not include cylinder heads or any other parts or machine work except as noted. All prices are U.S. dollars and are subject to change without notice. All work requires a minimum 50% deposit, non-refundable after work has begun. There are no warrantees of any kind on parts or components. Although unlikely, we are not responsible for cylinder heads which crack before, during or after modification. We highly recommend customers clean and crack check their cylinder heads before shipping. All customers please read: Common MGB cylinder head crack points.

MGB "Fast Road" Cylinder Head Package

Our most commonly requested cylinder head modification package, offering the performance, reliability and economy we've become famous for. Designed for maximum flow potential within a street usuable RPM Range, this package has proven itself on everything from stock restorations to fast road MGBs and is ideal for anyone wanting more from their street driven MGB.

• Cleaned and glass-bead blasted.
• Thoroughly checked for cracks (see notes above).
• Full porting and valve job to "Fast Road" specification.
• New manganese-bronze inlet and exhaust guides included and installed.
• Guides machined for Teflon stem seals (included).
• Guides reamed and honed for clearance.
• Hardened, lead-free exhaust seat inserts included and installed.
• New 1.625" inlet valves and Stellite exhaust valves.
• Inlet and exhaust valves trued and back-cut.
• Deck surface milled flat.
• New dual springs included and installed.
• New water neck and inlet manifold studs with brass nuts, included and installed.
• Cylinder head final cleaned and assembled, ready for installation.
• Heads are left unpainted unless otherwise requested (see options below).

Cost to modify your head to MGB "Fast Road" specifications: $1,000.00

Options and add-on's:

• Color options: $15.00 (Please specify: Sunrise Red, Moss Maroon, Gloss Black).
• Dual spring retainer upgrade when not supplied with customer head: $60.00 (Please see article)
• Type "B" valve keeper upgrade when not supplied with customer head: $55.00 (Please see article)
• Intake seat inserts to be used as needed (at our discretion): $15.00 each seat installed.
• Helicoil repairs to stripped stud holes (at our discretion): $8.00 each installed.
• Check cc volume of one chamber: $12.00
• Port your twin SU manifold to match cylinder head: $85.00
• Port your single Weber DCOE manifold to match cylinder head: $150.00
• 1.69" big valve upgrade (for factory large valve cylinder heads only): $60.00
• High tension springs for aftermarket cams or boosted engines: $35.00
• Forced induction options: Please send an E-mail to discuss your needs.

MGB "Vintage Race" Cylinder Head Package

For the ultimate in on-track performance, experience the power our flow-bench derived, dyno tested and race track proven, competition heads deliver.

• Full porting and valve job to "Vintage Race" specification.
• Valve sizes to rules requirements and/or specific needs.
• Valve spring and retainer packages to suit (see below).
• Spring installed heights set and balanced.
• Chamber volume set to suit compression ratio.
• Complete flow testing with MS Excel file included.
• Moss competition manifold gasket included.

Cost to modify your head to MGB "Vintage Race" specifications: Starting at $1,500.00 + Parts
Please send an E-mail to discuss your needs.

Options and add-on's:

• Color options: $15.00 (Please specify: Sunrise Red, Moss Maroon, Gloss Black).
• Port your twin SU or DCOE manifold to match cylinder head: $150.00 (no welding and/or epoxy work)
• Aluminum welding or custom epoxy work: $50/hour.
• Dowel pin locate intake manifold: $75.00.
• Clearance chambers for Cosworth style piston domes (all 4 chambers): $250.00
• Custom stainless inlet valves (sets of 4 each, 11/32" stems): $150.00
• Isky springs with additional machining included: $155.00
• Chrome Moly retainers for Isky Springs: $75.00.
• Titanium retainers for Isky springs: $200.00.

Pierce 5-Port Alloy Cylinder head

Due to reoccurring casting and machining irregularities we have found with these heads, we are currently no longer reworking them. We are sorry for the inconvenience.

Pierce "MSX" Crossflow Cylinder Head

Due to casting inconsistency from the manufacture and the extreme amounts of material removal necessary to achieve the performance levels we have been attaining, we can no longer offer our services for this cylinder head. Stay tuned to our home page for more information as it becomes available. Previous customers of this service may contact us for quotes concerning freshening and re-work.

Options:

• Port your twin DCOE manifold to match cylinder head: $200.00.

Other Vintage Marques and Models

This is a short list of various British cylinder heads we do from time to time. In all cases, please e-mail for a specific quote or estimate.

• MGA 1500 and 1622: Pricing as per MGB "Fast Road" or "Vintage Race" respectively.
• MGC 6-cylinder headwork starting at $1,600.00 and up.
• Sprite-Midget A-Series cylinder head work as per MGB "Fast Road" or "Vintage Race respectively.
• Triumph-MG 1500cc cylinder head work starting at $825.00 for "Fast Road" spec.
• Austin Healey 6-cylinder "Big Healey" cylinder head work starting at $1,700.00.
• Lotus Twin-Cam heads starting at $950 + parts

Accessory Services

This is a short list of various accessory services available to our cylinder head customers.

• MGB 5-main oil pump port work, including pump (please see article for more information), $245.00 (Add $15.00 for "double ported" pump body - includes extra inlet passage as per factory Special Tuning Manual).
• Manifold fabrication and prototype design at $50/hour.
• Aluminum head welding and repair (with or without associated heat treatment at our discression) (Please ask).
• Forged piston dome or dish shape design to complement combustion chambers in modified cylinder heads (Please ask).

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