{"product_id":"afr1007","title":"AFR 23 SBC 195cc Enforcer As Cast Angle Plug 64cc chamber NO PARTS","description":"\u003cp\u003eAFR1007\u003c\/p\u003e\n\u003cp\u003eAFR's 195cc SBC Enforcer Cylinder heads feature our Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location\/performance. This budget friendly head is perfect for your 350 to 400 Cubic Inch operating below 6000 RPM.\u003c\/p\u003e\n\u003cp\u003eThey come fully assembled with the identical components found in our higher end CNC ported cylinder heads; such as ARP rockers studs, PAC Racing springs, viton valve seals, AFR adjustable guide plates, machined bead valve locks (not stamped), hardened spring cups our one piece 8mm 21 4N Stainless Steel valves. They are available in straight or angle plug and bare without any parts for the DIY. Sold as a single piece, 2 are required per engine.\u003ca href=\"https:\/\/www.airflowresearch.com\/195cc-sbc-enforcer-cylinder-head\/#faq\" class=\"prodlink\"\u003ePlease see footnotes for additional information.\u003c\/a\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"descrip\" colspan=\"2\"\u003e\u003cstrong\u003eSpecifications \u0026amp; Features:\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003eA356 Aluminum\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eIntake Port Volume\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e195cc\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eIntake Port Dimension\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e2.080\" H x 1.270\" x 5\/16 Radius\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eIntake Port Location\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003eStock\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eExhaust Port Volume\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e76cc\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eExhaust Port Dimension\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e1.380\" H x 1.420\" W\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eExhaust Port Location\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003eStock\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eCombustion Chamber Size\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e64cc\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eValve Cover Bolt Pattern\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003ePerimeter Bolt\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eValve Angle\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e23°\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eValve Spring Pocket Diameter\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e1.580\" O.D\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eMax Valve Spring Pocket Machining\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e1.600\" O.D\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eWarning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDo not machine spring pad any deeper.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eDeck Thickness\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e.450\"\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eMinimum Bore Diameter\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e4.000\"\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eFlat Mill\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e.006\" per cc 56cc Maximum\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pib\"\u003e\n\u003ctd\u003eSpark Plug Dimensions\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"right\"\u003e14mm x .750\" w\/Gasket Seat\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 class=\"descrip\" data-mce-fragment=\"1\"\u003eFootnotes\u003c\/h2\u003e\n\u003col class=\"a\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eAFR Small Block Chevy\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWe strongly recommend using 7\/16\" rocker studs with todays fast cam rates and RPM capabilities as 3\/8\" Rocker Studs can occasionally break.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHeads with 1.625\" O.D springs will require some springs to be removed for access to some head bolts when installing the heads.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHeads are designed for 5\/16\" pushrods, Larger pushrods will not fit without clearancing and is not recommended since some areas are very thin. AFR recommends the use of .120\" thick-wall pushrods.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eAFR 227\/235cc Heads:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eDue to the \"60\/40\" stud and valve locations, shaft mount rockers are highly recommended, however if you're ONLY Drag Racing you can run a .050\" offset intake stud mount rocker with the AFR supplied guide plate (exhaust will use a standard rocker). Please note that with the .050\" offset rocker arms the roller tip of the stud mount rocker will not be perfectly centered and will not sit squarely on the valve causing increased side loading and wear. This option is not recommended for race\/endurance applications and\/or street engines that see a lot of miles.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eAFR LT-1 \/ LT-4 \/ Vortec Heads\/ Late Model TBI\/TPI Heads\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Your factory accessory bolts and center bolt valve covers need to be shortened 3\/16\" or they will bottom out. These cylinder heads are machined for both center and perimeter bolt valve covers, please see your instructions to avoids oil leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eGeneral Recommendations for AFR Cylinder Heads:\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eBar Codes\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Please keep the bar code \u0026amp; paperwork shipped with your head, these contain all the specs for your heads when calling AFR.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHigh Volume\/Pressure Oil Pumps\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- If you are using a high volume or high pressure oil pump it can submerge the valve seals in oil causing smoking or oil consumption. Your block manufacturer or engine builder can recommend oil restrictions to the top end\/valve train components.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003ePushrods -\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eDifferent length pushrods might be required, always check pushrod length. Check pushrod clearance with heads placed on the block before final assembly. Larger pushrods will not fit without clearancing and is not recommended since some areas are very thin. AFR recommends the use of .120\" thick-wall pushrods.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eMills\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Flat or angle mills could affect flow numbers and might require a thicker intake gasket.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStud Girdles\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Due to many available factory OEM and aftermarket style\/variations your existing stud girdle may not fit (AFR heads require AFR Stud Girdles)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eBoosted\/Nitrous Applications\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- We strongly recommend considering Inconel exhaust valves and AFR's optional heavy duty intake valve for power adder applications. Since boosted or nitrous oxide applications accelerate RPM quickly, additional spring pressure is required. We strongly recommend upgrading your valve springs or increasing your valve spring pressures since boost pressure on the valve reduces spring tension. For example, 15lbs boost on a 2.125 OD valve reduces the springs closed seat pressure by approximately 40-45lbs.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eAll MARINE Applications\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- We strongly recommend Inconel exhaust valves \u0026amp; also offer a hard anodized coating to slow the effects of corrosion. Please see note on guide clearance below.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide Clearance\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e- Your AFR Heads come with proper guide clearance (.0012\"-.0016\") for most applications. Boosted\/Nitrous or marine applications might require additional clearance and it is the customer's responsibility to verify proper clearance in these applications.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Springs\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Forced induction, nitrous oxide and cams with aggressive ramp rates may require additional spring pressure. We offer optional valve springs for these types of applications. AFR also recommends the use of billet cam cores and short travel Hydraulic Roller lifters which tolerate higher spring loads. Please don't hesitate to contact us directly if you question which spring is correct for your application.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eAFR Titanium Valves\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Might require lash caps and different length pushrods. Titanium valves are coated, do not grind valves because it removes the protective coating.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003ePiston to Valve\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- AFR assumes no responsibility for damage if the end user builds an engine without properly verifying he has enough piston to valve clearance (depth and radial clearance both checked). We recommend a minimum depth of .080\" on the intake valve and .100\" on the exhaust with a radial clearance of .020\" minimum around the perimeter of each valve. Clay is recommended to visually verify both depth as well as radial clearance. Just checking depth is not enough, the position of the valve pocket must also be addressed.\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003eIt is the customers responsibility to verify proper piston to valve clearance.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCNC Porting\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Occasionally a 100% CNC ported head might have a very small area left \"as cast\", this in no way affects performance.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eShaft Mount Rockers\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Shaft mount rockers might require additional clearance for proper pushrod fitment. Do not clearance the push rod area as the wall is .060\" thick. If you use Jesel Shaft Mounts, AFR only recommends their Pro Series.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eComp Cams Pro Magnum Rockers\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Typically these rocker arms do not clear a 1.500\" O.D retainer. A lash cap is required to space up the rocker arm.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eSpring Installation\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- To ease installation with 1.550\" O.D or larger springs, 12 pt head bolt or studs are recommended for extra clearance. Beveled or ground washers might be needed (ARP #200-8504 comes with smaller O.D and doesn't need to be ground)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Installed Heights\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- AFR valve spring installed height spec is +\/- .015 which is the smallest shim available for adjustment.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arms\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e- Use full roller rocker arms, roller tip rockers with stock style bodies are NOT recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Air Flow Research","offers":[{"title":"Default Title","offer_id":40133115445361,"sku":"AFR1007","price":591.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1088\/6742\/files\/AFR-1006-2__14352.1575505414.500.290.png?v=1683921293","url":"https:\/\/www.parkautomotorsports.ca\/products\/afr1007","provider":"Park Auto Motorsports","version":"1.0","type":"link"}