SKU: 47503669941

EMPI Hi-Performance Dual Port Cylinder Head 90.5/92mm - 35.5/32mm SS Valves - 3-Angle Valve Job - Part #98-1374-B

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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

EMPI Hi-Performance Dual Port Cylinder Head 90.5/92mm - 35.5/32mm SS Valves - 3-Angle Valve Job - Part #98-1374-BBuilding a 1776, 1835, or 1914 and want stainless valves without going to a full race head? This is the one. EMPI's Hi Performance dual port head (98 1374 B) is the proven 98 1355 B casting machined to fit 90. 5mm and 92mm pistons, upgraded with stainless Manley valves, hi rev springs, chromoly retainers, bronze guides, and a 3 angle valve job. SCORE approved, sold each. Features 90. 5mm 92mm bore, dual port casting (98 1355 B based) 35. 5mm intake

Building a 1776, 1835, or 1914 and want stainless valves without going to a full race head? This is the one. EMPI's Hi-Performance dual-port head (98-1374-B) is the proven 98-1355-B casting machined to fit 90.5mm and 92mm pistons, upgraded with stainless Manley valves, hi-rev springs, chromoly retainers, bronze guides, and a 3-angle valve job. SCORE-approved, sold each.

Features

  • 90.5mm / 92mm bore, dual port casting (98-1355-B based)
  • 35.5mm intake / 32mm exhaust stainless steel Manley valves
  • Hi-Rev single valve springs
  • Chromoly retainers and hardened keepers
  • Bronze valve guides
  • Rocker, exhaust, and intake studs included
  • 14mm x 1/2" spark plug holes
  • 3-angle performance valve job
  • Special aluminum alloy, fully repairable
  • SCORE approved for Class 11 competition
  • Sold each

Specifications

  • Chamber Volume: 51cc
  • Intake Port Volume: 53cc
  • Exhaust Port Volume: 56.5cc
  • Valves: 35.5mm intake / 32mm exhaust, stainless Manley
  • Part Number: 98-1374-B | UPC: 707924472356
  • Shipping weight: 13 lb | Boxed: 12 x 9 x 7 in

Important

Lash caps (P/N 00-4006-0) are required for all stainless steel valve applications — sold separately.

Fitment

CONFIRMED: VW Type 1 dual-port performance builds running 90.5mm or 92mm bore — 1776cc and 1835cc, and 90.5mm-based combinations. Beetle, Bus, Karmann Ghia, Type 3, Thing. NOT CONFIRMED: stock 85.5mm or 94mm bore (use the matching-bore head), single-port engines, Type 4 engines.

Questions & Answers

What bore are these machined for? 90.5mm and 92mm pistons.

What displacements? 1776cc (90.5mm) and 1835cc (92mm) builds.

Do I need lash caps? Yes — required with stainless valves, sold separately (00-4006-0).

Sold each or as a pair? Each.

What's the part number? EMPI 98-1374-B (UPC 707924472356).

Are you an authorized dealer? Yes — Washburn's Metal is an authorized EMPI dealer.

Prop 65 Warning

WARNING: This product can expose you to chemicals including lead which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. Wash hands following installation or before eating. All parts legal for use on pre-pollution controlled vehicles only.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 47503669941

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Angela Fraser
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★★★★★ 4
First wear ripped down butt seam
Color: Champagne-6pcs, Size: 14, Color: Champagne-6pcs, Size: 14
The color is darker in person, which is annoying because we were looking at the color specifically when purchasing. Look at reviews for what the color looks like. We purchased the “Champagne” colored suit. Size 14 works for my 13yr old. Good quality overall. Just a bit disappointed about the color difference. UPDATE: My son wore his suit for the first time to acting class, and while moving in a bending motion his pants ripped down the butt seam. I hope this was simply a fluke incident and that I can easily repair it. I said when he sat down it ripped more. A bit disappointing. He wasn’t doing lunges in his suit.
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Reviewed in the United States on November 11, 2025
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Bree
Battle Creek, US
★★★★★ 5
Great quality
Color: Grey-6pcs, Size: 7
fit my son like a glove!! true to size! and he said it was comfortable. i like that it cam with two options for bow tie and regular tie
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Reviewed in the United States on February 12, 2026
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M. Swagerty
Pawtucket, US
★★★★★ 5
Fits well, good quality
I measured my son carefully and this fits him perfectly. It is good quality and has gained him many compliments on how great he looks when he wears it to Mass. He also says it is very comfortable, and he loves the bow tie.
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Reviewed in the United States on November 24, 2025
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SBrown
Houston, US
★★★★★ 5
Best suit for my money
Color: Coffee-6pcs, Size: 6
Love the waist adjustment option the pants have, thick material, threading is professional, done well. Perfect fit, not to tight or too big. Bought a size 8 for my 7 yr old, I can keep this suit for 2 yrs possibly. Bought a size 16 for for 12 yr old , he can also keep this suit fo4 about 2 yrs to grow into
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Reviewed in the United States on September 20, 2025
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Brda b
Grantham, US
★★★★★ 1
Faltan piezas en el paquete
La tela esta muy bonita , el paquete dise 6 piezas y solo llegan 4 piezas , falto el moño y la camisa
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Reviewed in the United States on June 3, 2026

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