{"id":3311,"date":"2026-07-06T09:00:00","date_gmt":"2026-07-05T23:00:00","guid":{"rendered":"https:\/\/musclecarmuseum.com.au\/?p=3311"},"modified":"2026-06-15T14:35:26","modified_gmt":"2026-06-15T04:35:26","slug":"carbs-cleveland-heads-cubic-inches","status":"publish","type":"post","link":"https:\/\/musclecarmuseum.com.au\/index.php\/2026\/07\/06\/carbs-cleveland-heads-cubic-inches\/","title":{"rendered":"Carbs, Cleveland Heads &#038; Cubic Inches"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3311\" class=\"elementor elementor-3311\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9126692 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"9126692\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e181496\" data-id=\"e181496\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-11ccc79 elementor-widget elementor-widget-html\" data-id=\"11ccc79\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<!DOCTYPE html>\r\n<html lang=\"en-AU\">\r\n<head>\r\n<meta charset=\"UTF-8\">\r\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\r\n<title>Carburettors, Cleveland Heads and Cubic Inches Explained | Muscle Car Museum<\/title>\r\n<meta name=\"description\" content=\"Confused by carburettors, Cleveland heads and cubic inches? Here's a plain-English guide to muscle car jargon. Then see the real thing on the Gold Coast.\">\r\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\r\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\r\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Oswald:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap\" rel=\"stylesheet\">\r\n<style>\r\n  :root{--red:#c8102e;--red-dark:#9e0c23;--black:#0e0e0e;--ink:#1a1a1a;--grey:#5a5a5a;--line:#e4e4e4;--bg:#ffffff;--soft:#f5f5f5;}\r\n  *{box-sizing:border-box;margin:0;padding:0;}\r\n  body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;}\r\n  .wrap{max-width:820px;margin:0 auto;padding:0 22px;}\r\n  .hero{position:relative;background:linear-gradient(180deg,rgba(0,0,0,.70) 0%,rgba(0,0,0,.82) 100%),url('https:\/\/musclecarmuseum.com.au\/wp-content\/uploads\/2024\/01\/inside_MCM.jpg') center\/cover no-repeat;color:#fff;padding:88px 0 64px;text-align:center;border-bottom:6px solid var(--red);}\r\n  .eyebrow{display:inline-block;font-family:'Oswald',sans-serif;letter-spacing:.22em;text-transform:uppercase;font-size:.8rem;font-weight:600;color:#fff;background:var(--red);padding:7px 16px;border-radius:2px;margin-bottom:22px;}\r\n  .hero h1{font-family:'Oswald',sans-serif;font-weight:700;color:#fff;text-transform:uppercase;line-height:1.08;font-size:clamp(2rem,6vw,3.6rem);letter-spacing:.01em;max-width:16ch;margin:0 auto;text-shadow:0 2px 4px rgba(0,0,0,.9),0 4px 26px rgba(0,0,0,.8);}\r\n  .hero .meta{margin-top:22px;font-size:.85rem;letter-spacing:.05em;color:#e8e8e8;text-transform:uppercase;font-family:'Oswald',sans-serif;}\r\n  .hero .meta span{color:var(--red);font-weight:700;}\r\n  article{padding:54px 0 10px;}\r\n  .lead{font-size:1.22rem;line-height:1.6;color:var(--ink);font-weight:500;margin-bottom:30px;}\r\n  article p{margin-bottom:22px;font-size:1.06rem;color:#2a2a2a;}\r\n  article h2{font-family:'Oswald',sans-serif;text-transform:uppercase;font-weight:700;font-size:1.6rem;letter-spacing:.01em;margin:42px 0 16px;padding-left:16px;border-left:5px solid var(--red);}\r\n  strong{color:var(--ink);font-weight:700;}\r\n  .specs{display:flex;flex-wrap:wrap;gap:14px;margin:34px 0;}\r\n  .spec{flex:1 1 150px;background:var(--black);color:#fff;border-radius:6px;padding:22px 18px;text-align:center;border-bottom:4px solid var(--red);}\r\n  .spec .n{font-family:'Oswald',sans-serif;font-weight:700;font-size:1.7rem;color:#fff;line-height:1.1;}\r\n  .spec .l{display:block;margin-top:6px;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:#c9c9c9;}\r\n  .pull{background:var(--soft);border-left:5px solid var(--red);padding:24px 26px;margin:34px 0;font-family:'Oswald',sans-serif;font-weight:500;font-size:1.3rem;line-height:1.4;color:var(--ink);}\r\n  .cta{background:var(--black);color:#fff;border-radius:10px;padding:40px 30px;text-align:center;margin:48px 0 10px;border-top:6px solid var(--red);}\r\n  .cta h3{font-family:'Oswald',sans-serif;text-transform:uppercase;font-size:1.7rem;font-weight:700;margin-bottom:10px;letter-spacing:.02em;}\r\n  .cta p{color:#cfcfcf;margin-bottom:26px;font-size:1rem;}\r\n  .tickets{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:30px;}\r\n  .ticket{background:#1c1c1c;border:1px solid #2e2e2e;border-radius:8px;padding:16px 22px;min-width:130px;}\r\n  .ticket .t{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:#bdbdbd;}\r\n  .ticket .p{font-family:'Oswald',sans-serif;font-weight:700;font-size:1.9rem;color:#fff;margin-top:4px;}\r\n  .btn{display:inline-block;background:var(--red);color:#fff;text-decoration:none;font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.08em;font-weight:700;font-size:1.05rem;padding:16px 42px;border-radius:4px;transition:background .2s ease,transform .15s ease;}\r\n  .btn:hover{background:var(--red-dark);transform:translateY(-2px);}\r\n  .cta .fine{margin-top:18px;font-size:.82rem;color:#9a9a9a;}\r\n  footer{background:var(--black);color:#b8b8b8;text-align:center;padding:34px 22px;margin-top:50px;font-size:.85rem;}\r\n  footer .brand{font-family:'Oswald',sans-serif;text-transform:uppercase;color:#fff;font-weight:700;letter-spacing:.12em;font-size:1.05rem;margin-bottom:8px;}\r\n  footer a{color:var(--red);text-decoration:none;}\r\n  @media(max-width:600px){.hero{padding:64px 0 46px;}article{padding:38px 0 6px;}.lead{font-size:1.1rem;}article p{font-size:1.02rem;}.spec{flex:1 1 calc(50% - 7px);}.cta{padding:32px 20px;}}\r\n<\/style>\r\n<\/head>\r\n<body>\r\n  <header class=\"hero\">\r\n    <div class=\"wrap\">\r\n      <span class=\"eyebrow\">Week 5 \u00b7 Under the Bonnet<\/span>\r\n      <h1>Carbs, Cleveland Heads &amp; Cubic Inches<\/h1>\r\n      <div class=\"meta\">The Jargon, Decoded&nbsp; <span>\u00b7<\/span> &nbsp;Gold Coast<\/div>\r\n    <\/div>\r\n  <\/header>\r\n\r\n  <div class=\"wrap\">\r\n    <article>\r\n      <p class=\"lead\">Spend five minutes around muscle car fans and you'll hear a language all of its own: four-barrels, Cleveland heads, cubic inches, high-rise manifolds. It sounds intimidating, but the ideas behind the jargon are surprisingly simple.<\/p>\r\n      <p>Here's a friendly translation, so next time you're standing in front of a 351 Cleveland you'll know exactly what everyone's getting so excited about.<\/p>\r\n\r\n      <div class=\"specs\">\r\n        <div class=\"spec\"><span class=\"n\">Carbs<\/span><span class=\"l\">Fuel + Air<\/span><\/div>\r\n        <div class=\"spec\"><span class=\"n\">Heads<\/span><span class=\"l\">How It Breathes<\/span><\/div>\r\n        <div class=\"spec\"><span class=\"n\">Cubic In.<\/span><span class=\"l\">The Size<\/span><\/div>\r\n        <div class=\"spec\"><span class=\"n\">351<\/span><span class=\"l\">Cleveland<\/span><\/div>\r\n      <\/div>\r\n\r\n      <h2>Carburettors: The Mixers<\/h2>\r\n      <p>Before computers ran engines, the carburettor did the job of blending fuel and air in the right amounts. A 'four-barrel' carb simply has more openings to feed the engine more mix when you plant your foot \u2014 more breathing, more power. 'Twin four-barrels' means double the appetite.<\/p>\r\n      <h2>Cleveland Heads: The Breathing<\/h2>\r\n      <p>The 'heads' sit on top of the engine and control how easily it can breathe in and out. The famous Ford 'Cleveland' design had big, free-flowing ports that let the engine gulp air \u2014 which is a huge part of why a 351 Cleveland makes such serious power.<\/p>\r\n      <h2>Cubic Inches: The Size<\/h2>\r\n      <p>Cubic inches simply measure how big an engine is inside. More cubic inches generally means more potential power \u2014 which is why numbers like '327' and '351' are worn like badges of honour.<\/p>\r\n      <div class=\"pull\">Strip away the jargon and it's all one idea: help the engine breathe, and it'll reward you.<\/div>\r\n\r\n      <div class=\"cta\">\r\n        <h3>See the Jargon Come to Life<\/h3>\r\n        <p>Point at a real Cleveland V8 and sound like an expert, open daily on the Gold Coast.<\/p>\r\n        <div class=\"tickets\">\r\n          <div class=\"ticket\"><div class=\"t\">Adult<\/div><div class=\"p\">$20<\/div><\/div>\r\n          <div class=\"ticket\"><div class=\"t\">Couple<\/div><div class=\"p\">$35<\/div><\/div>\r\n          <div class=\"ticket\"><div class=\"t\">Family<\/div><div class=\"p\">$40<\/div><\/div>\r\n        <\/div>\r\n        <a class=\"btn\" href=\"https:\/\/musclecarmuseum.com.au\/index.php\/product-category\/tickets\/\">Book Your Tickets<\/a>\r\n        <div class=\"fine\">76 Bundall Road, Bundall QLD 4217 \u00b7 Open on the Gold Coast<\/div>\r\n      <\/div>\r\n    <\/article>\r\n  <\/div>\r\n\r\n  <footer>\r\n    <div class=\"brand\">Muscle Car Museum<\/div>\r\n    <div>A Tribute to Aussie Horsepower \u00b7 Gold Coast<\/div>\r\n    <div style=\"margin-top:10px;\"><a href=\"https:\/\/musclecarmuseum.com.au\/\">musclecarmuseum.com.au<\/a><\/div>\r\n  <\/footer>\r\n<\/body>\r\n<\/html>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Four-barrels, Cleveland heads, cubic inches \u2014 muscle car talk sounds like another language, but the ideas behind it are simple. We decode the jargon so you&#8217;ll know exactly what everyone&#8217;s getting excited about.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_canvas","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[48],"tags":[],"class_list":["post-3311","post","type-post","status-publish","format-standard","hentry","category-week-5-under-the-bonnet"],"_links":{"self":[{"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/posts\/3311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/comments?post=3311"}],"version-history":[{"count":5,"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/posts\/3311\/revisions"}],"predecessor-version":[{"id":3316,"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/posts\/3311\/revisions\/3316"}],"wp:attachment":[{"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/media?parent=3311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/categories?post=3311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/musclecarmuseum.com.au\/index.php\/wp-json\/wp\/v2\/tags?post=3311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}